Update docs

1 files changed, 13 insertions, 1 deletions

diff --git a/docs/rfc.md b/docs/rfc.md
index 3336cd4..b5fa585 100644
--- a/docs/rfc.md
+++ b/docs/rfc.md
@@ -243,6 +243,19 @@ example: joining, leaving or setting privilages.
 | 0x00 | none       |
 | 0x01 | in_channel |
 
+### GetHistory
+
+Read messages previously send to a specific channel. User has to member of the channel to perform this action. *since* field specifies start of time range for which history should be retrieved. *count* specifes how many messages should be returned in a single response. *GetHistory* is a locking sequence and it cannot be cancelled while in progress so *count* should be set relatively low. To get more messages use multiple requests with incremented *offset*.
+
+Response is just a sequence of *Message*. Client should use *Timestamp* field of a *Message* to show them in corrent order.
+
+| Type      | Name         |
+|-----------|--------------|
+| string    | channel_name |
+| timestamp | since        |
+| int64     | count        |
+| int64     | offset       |
+
 ### Test
 
 Test payload is used for encoder and decoders testing. Clients and servers
@@ -300,7 +313,6 @@ Exchanging messages between SOLEC servers is a core concept behind the project.
 Sending message to user residing on a different server require estabilishing a
 connection between both servers.
 
-
 ### Authentication
 
 Server authentication is crucial to prevent message spoofing and other forms of