diff --git a/API.md b/API.md
index 14fdbc6..6ec37e1 100644
--- a/API.md
+++ b/API.md
@@ -710,8 +710,9 @@ Address of the oplog. (A.k.a. the OrbitDB Address)
 Payload of the operation. Provided by the Store to `_addOperation`. 
 
 ### `next`
-Array of hashes of the oplog entries that are before this entry 
-in the oplog and that this entry depends upon.
+Array of hashes of the oplog entries that happened before this one.
+
+
 
 ### `refs`
 **TBD**
@@ -722,10 +723,12 @@ in the oplog and that this entry depends upon.
 ### `clock`
 Lamport clock instance of the entry.
 A Lamport clock contains a `time`, an integer, 
-taht for all operations depending on each other increases.
+that for all operations depending on each other increases.
 
 If Operation A depends on Operation B, B's time < A's time.
 
+[See the Wikipedia description of Lamport Clocks for more details](https://en.wikipedia.org/wiki/Lamport_timestamp)
+
 ## `key`
 Public key of the Identity that added this entry.