Andrea Bocelli made his classical debut singing at a concert at Teatro Romolo Valli in Reggio Emilia.
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The first American test-tube baby, Elizabeth Jordan Carr, was born in Norfolk, Virginia.
Hong Kong began to slaughter the city's 1.6 million chickens to stop the spread of an influenza strain.
The first major rock festival held on America's east coast took place.
Vladimir Putin signed a law banning the US adoption of Russian children.
President Richard Nixon signed the US Endangered Species Act into law.
