Let's make this birthday one to remember.

81 years old (Born on April 29, 1943)

Happy Birthday, Ian Kershaw! May your day be filled with more joy than historians discovering a previously unknown footnote. Your groundbreaking works like "Hitler: A Profile in Power" and "Popular Opinion and Political Dissent in the Third Reich" have made history buffs everywhere happier than finding an original manuscript at a garage sale.

Your meticulous research has not only enlightened readers worldwide but also ensured that no one dares challenge you to trivia night on 20th-century Germany. Here's hoping this year brings even greater success—perhaps another bestseller or finally uncovering Hitler's secret recipe for schnitzel? Cheers to many more historical triumphs ahead!