Jennifer Lopez scored her first UK No.1 single with “Love Don’t Cost A Thing.”
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US President Jimmy Carter expressed his support for Martin Luther King's birthday to become a national holiday.
Segregation of races on public transport became illegal as ruled by US Supreme Court.
Queen Margrethe II became the first Queen of Denmark since 1412.
Norway was ceded to Sweden by King Frederik VI of Denmark.
The clarinet was invented in Nuremberg, Germany, by Johann Christoph Denner.
