July 31 in Pop Culture History
781 – The oldest recorded eruption of Mount Fuji in Japan.
1492 – Jews were expelled from Spain when the Alhambra Decree took effect.
1790 – The first US patent (X000001) as issued, to inventor Samuel Hopkins for a potash process.
1930 – The radio mystery program The Shadow aired for the first time.
1931 – New York television station W2XAB (now known as WCBS) began broadcasting.
1948 – …