Europe

During the Age of Discovery, pirates likely kept parrots on board not as pets but as merchandise. With their vivid colors rare in Europe and ability to mimic human speech, parrots could be sold for high prices.

Many European surnames originated from 'son of [father's name].' English -son (Johnson, Jackson), Celtic Mc/Mac (McDonald, MacArthur) and O' (O'Brien), Spanish -ez (Rodríguez, González), and Slavic -vić (Ibrahimović, Đoković) all trace back to a father's name that became hereditary.

The British Empire—the largest in history, covering a quarter of Earth's land and people—never had an emperor. In Europe, the title required Roman Empire succession, but Britain had no Roman ties, and Henry VIII's split with the Pope sealed the impossibility.

From 6500 to 2000 BCE, Neolithic communities in southeastern Europe deliberately burned their villages every 75–80 years. The absence of human remains and extreme fire intensity suggest intentional arson. Archaeology calls this the "Burned House Horizon."

In 1807, the Portugal royal family fled to Brazil to escape Napoleon. In 1815, Rio de Janeiro became the capital of the United Kingdom of Portugal, Brazil, and the Algarves—a rare case of a European nation having its capital on another continent.

Medieval Europeans believed for centuries that "Prester John," a Christian king, ruled a powerful kingdom in Asia. This legend drove Prince Henry of Portugal to launch expeditions around Africa, helping catalyze the Age of Discovery.

Paris Green, an 18th-century pigment, became popular in Europe. It even repelled insects when painted on walls. But its ingredient, arsenic, killed many before it was banned. The convention of depicting poison as green may originate from this deadly pigment.

When syphilis spread across Europe, Naples called it "the French disease" and France called it "the Neapolitan disease." European countries then named syphilis after whichever nation they considered most immoral—the Spanish disease, the German disease, the Polish disease, and so on.

The barbershop pole originated from a time when barbers in Europe also performed surgery. Red represents arteries and bleeding, blue represents veins and shaving, and white represents bones and bandages.