South Africa rejoined the Commonwealth of Nations after ending Apartheid.
Source
The European Union expanded the 1951 Stresa Convention.
The Philadelphia Zoo opened. At the time, it was the only zoo in the 'New World.'
642 million people voted in India's general election, setting the record for the world’s largest election.
The first payphone went into service in the US.
Kentucky became the 15th state to join the United States of America.
