Everyone is Irish on St. Patrick's Day, as the saying goes. So in light of the ongoing festivities on Long Island and elsewhere this week, here are some interesting facts to help you get into the spirit.

-- There are more Irish people living in the United States than in Ireland. Some 34 million Americans have Irish ancestry -- that's nine times the population of Ireland.

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-- It's considered good luck to find a 4-leaf clover at any time, but even more so on St. Patrick's Day. Clovers typically have only 3 leaves, which is why finding a 4-leaf speciman is considered unusal. According to the Guinness Book of World Records, the highest number of leaves found on a clover is 14.

-- St. Patrick wasn't actually Irish. Some Scottish and even Italians have claimed him as one of their own.

-- St. Patrick used the shamrock to explain the Holy Trinity to the Irish, correlating the three parts of one leaf to the three persons in one God to explain the connection between the Father, the Son, and the Holy Spirit.

For more fun facts and St. Patrick's Day trivia, visit yumsugar.com.