Hoist a pint of Guinness to Ford on this St. Patrick's Day - it turns out the automaker can trace its roots to Ireland. William Ford, Henry's grandfather, emigrated to Dearborn in 1847, buying land next to a farm owned by another Irishman, who would eventually become Henry's maternal grandfather.

After successfully launching Ford Motor, Henry visited his grandparents' homes in Cork in 1917, and established Henry Ford & Son, Ltd to build tractors. It later became a division of Ford Motor, and the Cork plant has the distinction of producing the very last Model T in 1928.

Tongue in cheek, Ford Ireland's marketing director Denis McSweeney says, "For many of us, Ford is an Irish company with a large American branch."

[Source: Ford]