This Week In History

September 28 - In 1928, Alexander Fleming noticed a bacteria-killing mold growing in his laboratory, discovering what later became known as penicillin.

September 29 - In 1957, the New York Giants played their last game at the Polo Grounds, losing to the Pittsburgh Pirates 9-1. The Giants moved to San Francisco for the next season.

September 30 - In 1935, the Hoover Dam, on the border between Arizona and Nevada, was dedicated.

October 1 - In 1971, Walt Disney World opened near Orlando, Florida, on 27,400 acres purchased for about $5 million, or about $183 per acre.

October 2 - In 1967, Thurgood Marshall was sworn in as the first African-American justice of the U.S. Supreme Court.

October 3 - In 1990, the East German government was dissolved and its territory became part of a unified Germany, ending 45 years of postwar division.