April 21: Rome's birthday, Natale di Roma. Legend says Romulus founded Rome on April 21, 753 BC. So every year the people of Rome celebrate today as their city's birthday. People dressed as ancient Roman soldiers and citizens parade near the Colosseum.
1782 🏛️ King Rama I founded the city of Rattanakosin, now Bangkok, on the Chao Phraya River, where the golden Grand Palace was soon built. Grand Palace & Wat Phra Kaew →
1838 🌿 Naturalist John Muir was born in Scotland; he explored the wild mountains of California and helped protect Yosemite as a national park.
1934 🎨 A newspaper printed the famous "Surgeon's Photograph" of the Loch Ness Monster; sixty years later, it was revealed to be a toy model. Loch Ness Monster →