Karl
Karl is the German form of Charles, from the Germanic "karl" — meaning "free man." Karl Marx (1818-1883), the German philosopher whose "Das Kapital" (1867) and "The Communist Manifesto" (1848) founded communism, is one of the most influential thinkers in history. Karl was a top-200 American name from 1910 to 1970, peaking at #126 in 1910. Karl (the physicist Karl Popper, 1902-1994, the philosopher of science) gave the name intellectual weight. Karl is a male name of Germanic origin that means "Free man (German form of Charles)". Serious, German, and quietly intellectual. The name sounds historic. Karls tend to be principled. US peaked #126 in 1910. Now outside top 1000. Well-known people named Karl include Karl Marx (philosopher), Karl Popper (philosopher), Karl (German form of Charles). Common variations and related forms of Karl include Carl (variant), Charles (English form), Carlo (Italian).