On this day in 1806, Holy Roman Emperor Francis II was forced to resign due to his third defeat in the war against Bonaparte Napoleon.
On this day in 1890, a murderer named William Kemmler was the first prisoner executed by electric chair in the United States.
On this day in 1949, a US plane dropped the first atomic bomb in Hiroshima, Japan, killing more than 90,000 and injuring over 9,000.
On this day in 2006, Taiwan’s Premier Su Tseng-chang canceled his plan to visit Chad in wake of the African country's announcement of its decision to resume diplomatic ties with Beijing.