Event:
Soyuz 39 returns to Earth
More Notable Events on March 6:
1990 SR-71 sets a transcontinental record, flying 2,404 miles in 1:08:17
1981 Walter Cronkite signs-off as anchorman of CBS Evening News
1964 Constantine succeeds Paul I as king of Greece
1940 1st U.S. telecast from an airplane, New York City
1836 3,000 Mexicans beat 182 Texans at the Alamo, after 13 day fight
