recess - A temporary interruption of the Senate's proceedings, sometimes within the same day. The Senate may also recess overnight rather than adjourn at the end of the day. Recess also refers to longer breaks, such as the breaks taken during holiday periods, pursuant to concurrent resolution.
Congressional Sessions lists all Congresses and corresponding years - from 1789, when the 1st Congress met, through the current Congress.
You can access legislative information, by bill number or key words, from the THOMAS Web site. Information from the present back to the 93rd Congress (1973) is available on THOMAS.
For information on the Senate, Congress, the legislative process and the federal government, the Virtual Reference Desk is a good place to begin.