LONDON, May 11 (UPI) -- The chivalrous image typically associated with German flying ace Manfred von Richthofen, the so-called Red Baron, is undeserved, a British biographer claims.

UPI Almanac for Monday, April 21, 2008.

UPI almanac for Saturday, April 21, 2007.

Today is Friday, April 21, the 111th day of 2006 with 254 to follow.

The weekly UPI Almanac package for April 17-23, 2006.

Today is Thursday, April 21, the 111th day of 2005 with 254 to follow.

COLUMBIA, Mo., Sept. 20 (UPI) -- The demise of Germany's World War I flying ace Baron Manfred von Richthofen may be partly attributable to an earlier brain injury, U.S. researchers said.

Today is Wednesday, April 21, the 112th day of 2004 with 254 to follow.

With "Remember the Alamo!" as their stirring battle cry, Texas forces under Sam Houston defeated the army of Mexican General Santa Anna at San Jacinto on this date in 1836, setting the stage for the birth of the Republic of Texas.