The first British-made jet bomber, the English Electric Canberra, made its first test flight.
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OpenAI's newest version of ChatGPT, GPT-4 Omni (GPT-4o), went live.
An assassination attempt was made on Pope John Paul II.
The first US airmail stamps were issued, costing 24 cents.
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.
