diff --git a/fluffy/populate_db.nim b/fluffy/data/history_data_parser.nim
similarity index 50%
rename from fluffy/populate_db.nim
rename to fluffy/data/history_data_parser.nim
index 342f502fa..b25f9e863 100644
--- a/fluffy/populate_db.nim
+++ b/fluffy/data/history_data_parser.nim
@@ -9,19 +9,17 @@
 
 import
   json_serialization, json_serialization/std/tables,
-  stew/[byteutils, io2, results], chronos, chronicles,
+  stew/[byteutils, io2, results], chronicles,
   eth/[rlp, common/eth_types],
   # TODO: `NetworkId` should not be in these private types
   eth/p2p/private/p2p_types,
-  ../nimbus/[chain_config, genesis],
-  "."/[content_db, seed_db],
-  ./network/wire/portal_protocol,
-  ./network/history/[history_content, accumulator]
+  ../../nimbus/[chain_config, genesis],
+  ../network/history/[history_content, accumulator]
 
 export results, tables
 
-# Helper calls to, offline, populate the database with the current existing json
-# files with block data. Might move to some other storage format later on.
+# Helper calls to parse history data from json files. Format currently
+# unspecified and likely to change.
 # Perhaps https://github.com/status-im/nimbus-eth2/blob/stable/docs/e2store.md
 # can be interesting here too.
 
@@ -72,7 +70,7 @@ iterator blockHashes*(blockData: BlockDataTable): BlockHash =
 
     yield blockHash
 
-func readBlockData(
+func readBlockData*(
     hash: string, blockData: BlockData, verify = false):
     Result[seq[(ContentKey, seq[byte])], string] =
   var res: seq[(ContentKey, seq[byte])]
@@ -163,38 +161,6 @@ proc getGenesisHeader*(id: NetworkId = MainNet): BlockHeader =
   except RlpError:
     raise (ref Defect)(msg: "Genesis should be valid")
 
-proc buildAccumulator*(dataFile: string): Result[Accumulator, string] =
-  let blockData = ? readJsonType(dataFile, BlockDataTable)
-
-  var headers: seq[BlockHeader]
-  # Len of headers from blockdata + genesis header
-  headers.setLen(blockData.len() + 1)
-
-  headers[0] = getGenesisHeader()
-
-  for k, v in blockData.pairs:
-    let header = ? v.readBlockHeader()
-    headers[header.blockNumber.truncate(int)] = header
-
-  ok(buildAccumulator(headers))
-
-proc buildAccumulatorData*(
-    dataFile: string):
-    Result[seq[(ContentKey, EpochAccumulator)], string] =
-  let blockData = ? readJsonType(dataFile, BlockDataTable)
-
-  var headers: seq[BlockHeader]
-  # Len of headers from blockdata + genesis header
-  headers.setLen(blockData.len() + 1)
-
-  headers[0] = getGenesisHeader()
-
-  for k, v in blockData.pairs:
-    let header = ? v.readBlockHeader()
-    headers[header.blockNumber.truncate(int)] = header
-
-  ok(buildAccumulatorData(headers))
-
 proc readAccumulator*(dataFile: string): Result[Accumulator, string] =
   let res = ? readJsonType(dataFile, AccumulatorObject)
 
@@ -222,126 +188,3 @@ proc readEpochAccumulator*(dataFile: string): Result[EpochAccumulator, string] =
     ok(SSZ.decode(encodedAccumulator, EpochAccumulator))
   except SszError as e:
     err("Decoding epoch accumulator failed: " & e.msg)
-
-proc historyStore*(
-    p: PortalProtocol, dataFile: string, verify = false):
-    Result[void, string] =
-  let blockData = ? readJsonType(dataFile, BlockDataTable)
-
-  for b in blocks(blockData, verify):
-    for value in b:
-      # Note: This is the slowest part due to the hashing that takes place.
-      p.storeContent(history_content.toContentId(value[0]), value[1])
-
-  ok()
-
-proc propagateAccumulatorData*(
-    p: PortalProtocol, dataFile: string):
-    Future[Result[void, string]] {.async.} =
-  ## Propagate all epoch accumulators created when building the accumulator
-  ## from the block headers.
-  ## dataFile holds block data
-  let epochAccumulators = buildAccumulatorData(dataFile)
-  if epochAccumulators.isErr():
-    return err(epochAccumulators.error)
-  else:
-    for (key, epochAccumulator) in epochAccumulators.get():
-      let content = SSZ.encode(epochAccumulator)
-
-      p.storeContent(
-        history_content.toContentId(key), content)
-      await p.neighborhoodGossip(
-        ContentKeysList(@[encode(key)]), @[content])
-
-    return ok()
-
-proc propagateEpochAccumulator*(
-    p: PortalProtocol, dataFile: string):
-    Future[Result[void, string]] {.async.} =
-  ## Propagate a specific epoch accumulator into the network.
-  ## dataFile holds the SSZ serialized epoch accumulator
-  let epochAccumulatorRes = readEpochAccumulator(dataFile)
-  if epochAccumulatorRes.isErr():
-    return err(epochAccumulatorRes.error)
-  else:
-    let
-      accumulator = epochAccumulatorRes.get()
-      rootHash = accumulator.hash_tree_root()
-      key = ContentKey(
-        contentType: epochAccumulator,
-        epochAccumulatorKey: EpochAccumulatorKey(
-          epochHash: rootHash))
-
-    p.storeContent(
-      history_content.toContentId(key), SSZ.encode(accumulator))
-    await p.neighborhoodGossip(
-      ContentKeysList(@[encode(key)]), @[SSZ.encode(accumulator)])
-
-    return ok()
-
-proc historyPropagate*(
-    p: PortalProtocol, dataFile: string, verify = false):
-    Future[Result[void, string]] {.async.} =
-  const concurrentGossips = 20
-
-  var gossipQueue =
-    newAsyncQueue[(ContentKeysList, seq[byte])](concurrentGossips)
-  var gossipWorkers: seq[Future[void]]
-
-  proc gossipWorker(p: PortalProtocol) {.async.} =
-    while true:
-      let (keys, content) = await gossipQueue.popFirst()
-
-      await p.neighborhoodGossip(keys, @[content])
-
-  for i in 0 ..< concurrentGossips:
-    gossipWorkers.add(gossipWorker(p))
-
-  let blockData = readJsonType(dataFile, BlockDataTable)
-  if blockData.isOk():
-    for b in blocks(blockData.get(), verify):
-      for value in b:
-        # Only sending non empty data, e.g. empty receipts are not send
-        # TODO: Could do a similar thing for a combination of empty
-        # txs and empty uncles, as then the serialization is always the same.
-        if value[1].len() > 0:
-          info "Seeding block content into the network", contentKey = value[0]
-          # Note: This is the slowest part due to the hashing that takes place.
-          let contentId = history_content.toContentId(value[0])
-          p.storeContent(contentId, value[1])
-
-          await gossipQueue.addLast(
-            (ContentKeysList(@[encode(value[0])]), value[1]))
-
-    return ok()
-  else:
-    return err(blockData.error)
-
-proc historyPropagateBlock*(
-    p: PortalProtocol, dataFile: string, blockHash: string, verify = false):
-    Future[Result[void, string]] {.async.} =
-  let blockDataTable = readJsonType(dataFile, BlockDataTable)
-
-  if blockDataTable.isOk():
-    let b =
-      try:
-        blockDataTable.get()[blockHash]
-      except KeyError:
-        return err("Block hash not found in block data file")
-
-    let blockDataRes = readBlockData(blockHash, b)
-    if blockDataRes.isErr:
-      return err(blockDataRes.error)
-
-    let blockData = blockDataRes.get()
-
-    for value in blockData:
-      info "Seeding block content into the network", contentKey = value[0]
-      let contentId = history_content.toContentId(value[0])
-      p.storeContent(contentId, value[1])
-
-      await p.neighborhoodGossip(ContentKeysList(@[encode(value[0])]), @[value[1]])
-
-    return ok()
-  else:
-    return err(blockDataTable.error)
diff --git a/fluffy/data/history_data_seeding.nim b/fluffy/data/history_data_seeding.nim
new file mode 100644
index 000000000..9f130fde7
--- /dev/null
+++ b/fluffy/data/history_data_seeding.nim
@@ -0,0 +1,174 @@
+# # Nimbus - Portal Network
+# # Copyright (c) 2022 Status Research & Development GmbH
+# # Licensed and distributed under either of
+# #   * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
+# #   * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
+# # at your option. This file may not be copied, modified, or distributed except according to those terms.
+
+{.push raises: [Defect].}
+
+import
+  stew/results, chronos, chronicles,
+  eth/common/eth_types,
+  ../network/wire/portal_protocol,
+  ../network/history/[history_content, accumulator],
+  ./history_data_parser
+
+export results
+
+### Helper calls to seed the local database and/or the network
+
+proc buildAccumulator*(dataFile: string): Result[Accumulator, string] =
+  let blockData = ? readJsonType(dataFile, BlockDataTable)
+
+  var headers: seq[BlockHeader]
+  # Len of headers from blockdata + genesis header
+  headers.setLen(blockData.len() + 1)
+
+  headers[0] = getGenesisHeader()
+
+  for k, v in blockData.pairs:
+    let header = ? v.readBlockHeader()
+    headers[header.blockNumber.truncate(int)] = header
+
+  ok(buildAccumulator(headers))
+
+proc buildAccumulatorData*(
+    dataFile: string):
+    Result[seq[(ContentKey, EpochAccumulator)], string] =
+  let blockData = ? readJsonType(dataFile, BlockDataTable)
+
+  var headers: seq[BlockHeader]
+  # Len of headers from blockdata + genesis header
+  headers.setLen(blockData.len() + 1)
+
+  headers[0] = getGenesisHeader()
+
+  for k, v in blockData.pairs:
+    let header = ? v.readBlockHeader()
+    headers[header.blockNumber.truncate(int)] = header
+
+  ok(buildAccumulatorData(headers))
+
+proc historyStore*(
+    p: PortalProtocol, dataFile: string, verify = false):
+    Result[void, string] =
+  let blockData = ? readJsonType(dataFile, BlockDataTable)
+
+  for b in blocks(blockData, verify):
+    for value in b:
+      # Note: This is the slowest part due to the hashing that takes place.
+      p.storeContent(history_content.toContentId(value[0]), value[1])
+
+  ok()
+
+proc propagateAccumulatorData*(
+    p: PortalProtocol, dataFile: string):
+    Future[Result[void, string]] {.async.} =
+  ## Propagate all epoch accumulators created when building the accumulator
+  ## from the block headers.
+  ## dataFile holds block data
+  let epochAccumulators = buildAccumulatorData(dataFile)
+  if epochAccumulators.isErr():
+    return err(epochAccumulators.error)
+  else:
+    for (key, epochAccumulator) in epochAccumulators.get():
+      let content = SSZ.encode(epochAccumulator)
+
+      p.storeContent(
+        history_content.toContentId(key), content)
+      await p.neighborhoodGossip(
+        ContentKeysList(@[encode(key)]), @[content])
+
+    return ok()
+
+proc propagateEpochAccumulator*(
+    p: PortalProtocol, dataFile: string):
+    Future[Result[void, string]] {.async.} =
+  ## Propagate a specific epoch accumulator into the network.
+  ## dataFile holds the SSZ serialized epoch accumulator
+  let epochAccumulatorRes = readEpochAccumulator(dataFile)
+  if epochAccumulatorRes.isErr():
+    return err(epochAccumulatorRes.error)
+  else:
+    let
+      accumulator = epochAccumulatorRes.get()
+      rootHash = accumulator.hash_tree_root()
+      key = ContentKey(
+        contentType: epochAccumulator,
+        epochAccumulatorKey: EpochAccumulatorKey(
+          epochHash: rootHash))
+
+    p.storeContent(
+      history_content.toContentId(key), SSZ.encode(accumulator))
+    await p.neighborhoodGossip(
+      ContentKeysList(@[encode(key)]), @[SSZ.encode(accumulator)])
+
+    return ok()
+
+proc historyPropagate*(
+    p: PortalProtocol, dataFile: string, verify = false):
+    Future[Result[void, string]] {.async.} =
+  const concurrentGossips = 20
+
+  var gossipQueue =
+    newAsyncQueue[(ContentKeysList, seq[byte])](concurrentGossips)
+  var gossipWorkers: seq[Future[void]]
+
+  proc gossipWorker(p: PortalProtocol) {.async.} =
+    while true:
+      let (keys, content) = await gossipQueue.popFirst()
+
+      await p.neighborhoodGossip(keys, @[content])
+
+  for i in 0 ..< concurrentGossips:
+    gossipWorkers.add(gossipWorker(p))
+
+  let blockData = readJsonType(dataFile, BlockDataTable)
+  if blockData.isOk():
+    for b in blocks(blockData.get(), verify):
+      for value in b:
+        # Only sending non empty data, e.g. empty receipts are not send
+        # TODO: Could do a similar thing for a combination of empty
+        # txs and empty uncles, as then the serialization is always the same.
+        if value[1].len() > 0:
+          info "Seeding block content into the network", contentKey = value[0]
+          # Note: This is the slowest part due to the hashing that takes place.
+          let contentId = history_content.toContentId(value[0])
+          p.storeContent(contentId, value[1])
+
+          await gossipQueue.addLast(
+            (ContentKeysList(@[encode(value[0])]), value[1]))
+
+    return ok()
+  else:
+    return err(blockData.error)
+
+proc historyPropagateBlock*(
+    p: PortalProtocol, dataFile: string, blockHash: string, verify = false):
+    Future[Result[void, string]] {.async.} =
+  let blockDataTable = readJsonType(dataFile, BlockDataTable)
+
+  if blockDataTable.isOk():
+    let b =
+      try:
+        blockDataTable.get()[blockHash]
+      except KeyError:
+        return err("Block hash not found in block data file")
+
+    let blockDataRes = readBlockData(blockHash, b)
+    if blockDataRes.isErr:
+      return err(blockDataRes.error)
+
+    let blockData = blockDataRes.get()
+
+    for value in blockData:
+      info "Seeding block content into the network", contentKey = value[0]
+      let contentId = history_content.toContentId(value[0])
+      p.storeContent(contentId, value[1])
+
+      await p.neighborhoodGossip(ContentKeysList(@[encode(value[0])]), @[value[1]])
+
+    return ok()
+  else:
+    return err(blockDataTable.error)
diff --git a/fluffy/fluffy.nim b/fluffy/fluffy.nim
index bb9ef726f..a10b3612a 100644
--- a/fluffy/fluffy.nim
+++ b/fluffy/fluffy.nim
@@ -20,7 +20,8 @@ import
   ./network/state/[state_network, state_content],
   ./network/history/[history_network, history_content],
   ./network/wire/[portal_stream, portal_protocol_config],
-  "."/[content_db, populate_db]
+  ./data/[history_data_seeding, history_data_parser],
+  ./content_db
 
 proc initializeBridgeClient(maybeUri: Option[string]): Option[BridgeClient] =
   try:
diff --git a/fluffy/network/history/accumulator_db.nim b/fluffy/network/history/accumulator_db.nim
index 998c83317..e77c84a03 100644
--- a/fluffy/network/history/accumulator_db.nim
+++ b/fluffy/network/history/accumulator_db.nim
@@ -13,7 +13,7 @@ import
   eth/common/eth_types,
   ssz_serialization, ssz_serialization/[proofs, merkleization],
   ../../common/common_types,
-  ../../populate_db,
+  ../../data/history_data_seeding,
   "."/[history_content, accumulator]
 
 type
diff --git a/fluffy/network/history/history_network.nim b/fluffy/network/history/history_network.nim
index 08114f765..d107b4b67 100644
--- a/fluffy/network/history/history_network.nim
+++ b/fluffy/network/history/history_network.nim
@@ -15,8 +15,7 @@ import
   ../../content_db,
   ../../../nimbus/constants,
   ../wire/[portal_protocol, portal_stream, portal_protocol_config],
-  "."/[history_content, accumulator],
-  ../../populate_db
+  "."/[history_content, accumulator]
 
 logScope:
   topics = "portal_hist"
diff --git a/fluffy/scripts/test_portal_testnet.nim b/fluffy/scripts/test_portal_testnet.nim
index 1cb951abd..010cc76c5 100644
--- a/fluffy/scripts/test_portal_testnet.nim
+++ b/fluffy/scripts/test_portal_testnet.nim
@@ -14,7 +14,8 @@ import
   ../../nimbus/rpc/[hexstrings, rpc_types],
   ../rpc/portal_rpc_client,
   ../rpc/eth_rpc_client,
-  ".."/[populate_db, seed_db]
+  ../data/[history_data_seeding, history_data_parser],
+  ../seed_db
 
 type
   FutureCallback[A] = proc (): Future[A] {.gcsafe, raises: [Defect].}
diff --git a/fluffy/tests/test_accumulator.nim b/fluffy/tests/test_accumulator.nim
index 2784a0c01..b660a11ac 100644
--- a/fluffy/tests/test_accumulator.nim
+++ b/fluffy/tests/test_accumulator.nim
@@ -12,7 +12,7 @@
 import
   unittest2, stint, stew/byteutils,
   eth/common/eth_types_rlp,
-  ../populate_db,
+  ../data/history_data_parser,
   ../network/history/[history_content, accumulator]
 
 func buildProof(
diff --git a/fluffy/tests/test_history_validation.nim b/fluffy/tests/test_history_validation.nim
index 3efcd15ad..0734bddd3 100644
--- a/fluffy/tests/test_history_validation.nim
+++ b/fluffy/tests/test_history_validation.nim
@@ -14,7 +14,7 @@ import
   stew/[byteutils, results],
   eth/[common/eth_types, rlp],
   ../common/common_types,
-  ../populate_db,
+  ../data/history_data_parser,
   ../network/history/history_network
 
 const