April, 1975 – Bill Gates and Paul Allen established Microsoft

Microsoft has developed into a multinational corporation, and it is the world's largest software maker by revenue.

April, 1998 – The world's largest suspension bridge opened to traffic

The Akashi Kaiky? Bridge in Japan features the world's longest central span, measuring 1991 meters (6532 feet).

April, 1896 – The first modern Olympic Games were opened in Athens

241 athletes from 14 countries took part in the First Olympiad. The event took place over 1500 years after the last ancient Olympic Games, which originated in Olympia in south-western Greece.

April, 1948 – The World Health Organisation was established

The WHO is a United Nations agency concerned with fighting disease and epidemics worldwide, building up national health services, and improving health education in its 194 member states.

April, 1977 – The Clash released their debut album of the same name

The British combo around lead vocalist Joe Strummer is considered one of the most influential early punk rock bands.

April, 1860 – The world's first recording of the human voice was created

French inventor Édouard-Léon Scott de Martinville used his phonautograph, the earliest known sound recording device, to capture himself singing the French folk song Au clair de la lune.

April, 1970 – The Beatles break up as Paul McCartney leaves the band

In their ten years of existence, the British rock group became one of the most successful bands of all time, selling over a billion albums, according to EMI.