The first US airmail stamps were issued, costing 24 cents.
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Winston Churchill made his famous speech to the House of Commons.
An Australian man became the first to circumnavigate the world in an amphibious vehicle.
Zakir Husain began an almost two-year term as President of India.
The first railway line in Pakistan opened, with trains running from Karachi to Kotri.
OpenAI's newest version of ChatGPT, GPT-4 Omni (GPT-4o), went live.