On May 11, 1969, Hamburger Hill became the scene of an
intense  and controversial battle during the Vietnam War.

Known to military planners as Hill 937 (its height in meters),
the solitary peak is located in the dense jungles of the A
Shau Valley of Vietnam, about a mile from the border with
Laos.       

 Though the hill had no real tactical significance, taking the
hill was part of Operation Apache Snow, a U.S. military sweep
of the A Shau Valley. 

The purpose of the operation was to cut off North Vietnamese
infiltration from Laos and enemy threats to the cities of Hue
and Da Nang.    

Hamburger Hill the day after the battle, May 21, 1969.

On May 11, 1960, Adolf Eichmann, the Nazi SS officer who
organized Adolf Hitler’s “final solution of the Jewish question," 
was captured in Argentina. On May 23, Israeli Prime Minister
David Ben-Gurion announces to the world that he will stand
trial in Israel.

Rafi Eitan, the Mossad agent who led the Israeli team that captured
Nazi Adolf Eichmann, died at aged 92 in 1919.

On May 11, 1997, chess grandmaster Garry Kasparov resigned
after 19 moves in a game against Deep Blue, a chess-playing
computer developed by scientists at IBM. This was the sixth
and final game of their match, which Kasparov lost two games
to one, with three draws.

Kasparov, a chess prodigy from Azerbaijan, was a skillful chess
player from childhood. At 21, Kasparov played Anatoly Karpov
for the world title, but the 49-game match ended indecisively.

The next year, Kasparov beat Karpov to become the youngest
world champion in history. With a FIDE (Federation International
des Echecs) score of 2800, and a streak of 12 world chess titles
in a row, Kasparov was considered the greatest chess player in
history going into his match with Deep Blue.

Garry Kimovich Kasparov

On May 11, 1947, the B.F. Goodrich Company of Akron, Ohio,
announced it had developed a tubeless tire, a technological
innovation that would make automobiles safer and more
efficient.

The culmination of more than three years of engineering,
Goodrich’s tubeless tire effectively eliminated the inner
tube, trapping the pressurized air within the tire walls
themselves.

By reinforcing those walls, the company claimed, they were
able to combine the puncture-sealing features of inner tubes
with an improved ease of riding, high resistance to bruising
and superior retention of air pressure.