ED DANAHUE

On this day in 1954, the U.S. Senate voted to condemn Sen. Joseph
R. McCarthy for what it called "conduct that tends to bring the
Senate into dishonor and disrepute." The censure was related to McCarthy’s controversial investigation of suspected communists in
the U.S. government, military and civilian society.

A self-sustaining nuclear chain reaction was demonstrated by Dr.
Enrico Fermi and his staff at the University of Chicago on this day
in 1942. The above illustration shows scientists watching the first 
sustained fission chain reaction.

Enrico Fermi (1901–1954)