But when it comes to the shamrock's famously lucky relative ... tails of Aer Lingus jets, the Irish national airline." ...

We all know carrying a four-leaf clover will bring you good fortune, but the history of this lucky symbol may surprise ... even recorded as being worn by Irish people as early as the 1720s.

Fact checked by Sarah Scott Reviewed by Mary Marlowe Leverette Both Irish ... the four-leaf clover is not a separate species, just a genetic anomaly. That's why people feel so lucky when they ...