Here's more from the press release:
"The data for washingtonpost.com's U.S. Congress Votes Database is taken directly from several official Internet sources:
- House vote data comes from the Web site of the Clerk of the House of Representatives.
- Senate vote data comes from the Web site of the Senate.
- Member biographical information, including birth dates and hometowns, comes from the Biographical Directory of the United States Congress.
- Member gender information comes from Women in Congress site and the Women in the Senate page.
- Representatives' district information comes from the Library of Congress' THOMAS site.
For each congressional vote in each chamber beginning with the 102nd Congress (1991), the Post has assembled detail and summary information about that vote and the members who took part. In addition to displaying the details of every vote, washingtonpost.com calculates a majority position for Republicans and Democrats, if one exists.
The Post uses additional sources for certain types of summary information. For the vote totals by region, regional definitions from the U.S. Census Bureau are employed. For totals by "Baby Boomer" status, the Post defines Baby Boomers as those born between the end of World War II (Aug. 1, 1945) through Dec. 31, 1964, inclusive. Vote totals by astrological sign are calculated using each member's date of birth.
Statistics on most-voted on bills include votes in both the House and Senate for a two-year Congress. Late-night votes are defined as those occurring between midnight and 7 a.m."
Posted by Tami Smith to gov docs at 12/13/2005 06:40:00 AM