What day of the week was February 23, 1927?

The day of the week February 23rd, 1927 fell on was a Wednesday.

Régine Crespin the French soprano (d. 2007) was born on 23 February in 1927.

U.S. President Calvin Coolidge signs a bill by Congress establishing the Federal Radio Commission (later replaced by the Federal Communications Commission) which was to regulate the use of radio frequencies in the United States. German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli the in which he describes his uncertainty principle for the first time.