pocket veto - The Constitution grants the President 10 days to review a measure passed by the Congress. If the President has not signed the bill after 10 days, it becomes law without his signature. However, if Congress adjourns during the 10-day period, the bill does not become law.
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.