The first US airmail stamps were issued, costing 24 cents.
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The Beatles movie, 'Let it Be,' premiered.
The first four-engine aircraft was built and flown by Igor Sikorsky.
An Australian man became the first to circumnavigate the world in an amphibious vehicle.
Reggie Jackson became the first major leaguer to strike out 2,000 times.
Brazil introduced the Golden Law (Lei Áurea), signed by the Princess Imperial of Brazil, which abolished all forms of slavery.
