The first railway line in Pakistan opened, with trains running from Karachi to Kotri.
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The first four-engine aircraft was built and flown by Igor Sikorsky.
OpenAI's newest version of ChatGPT, GPT-4 Omni (GPT-4o), went live.
Brazil introduced the Golden Law (Lei Áurea), signed by the Princess Imperial of Brazil, which abolished all forms of slavery.
Reggie Jackson became the first major leaguer to strike out 2,000 times.
An Australian man became the first to circumnavigate the world in an amphibious vehicle.
