President Richard Nixon signed the US Endangered Species Act into law.
Source
Muriel Siebert became the first woman to own a seat on New York Stock Exchange.
The first American test-tube baby, Elizabeth Jordan Carr, was born in Norfolk, Virginia.
The Westminster Abbey in London was consecrated.
The first major rock festival held on America's east coast took place.
LinkedIn was founded by Reid Hoffman and the founding team members from PayPal and Socialnet.com.
