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December 2 · This Day in America

1942
Ingenuity

Humans sustain a nuclear chain reaction for the first time

Under the abandoned grandstands of Stagg Field in Chicago, in a converted squash court, forty-nine people stand around a black lattice of graphite and uranium and wait. Enrico Fermi has built a pile he believes can split atoms in a controlled, self-feeding chain. No one has done this before. If the math is wrong, the consequences are unknown. At 3:25 in the afternoon the last control rod is drawn out by inches; the neutron counters climb from a clatter to a roar to a steady tone, and Fermi lets it run for four and a half minutes before he shuts it down. Wigner produces a bottle of Chianti. They drink from paper cups, in silence, and sign the straw wrapper. A coded call goes east: the Italian navigator has landed in the new world. The natives were friendly. The atomic age has begun, and it cannot be un-begun.

Source: news.uchicago.edu

Also on this day · 1859

John Brown is hanged in Virginia

Convicted of treason for his raid on the federal arsenal at Harpers Ferry, the abolitionist John Brown rides to the gallows on his own coffin. He hands a guard a last note: he is now quite certain the crimes of this guilty land will never be purged away but with blood. In the watching crowd of soldiers stands a young actor named John Wilkes Booth. In sixteen months the war Brown predicted will come.

Source: www.loc.gov

“I, John Brown, am now quite certain that the crimes of this guilty land will never be purged away but with blood.”John Brown, final written words, 1859

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