St. Patrick's Day
In Chicago, they dye the river green. In Savannah, Georgia, they hold the second-largest St. Patrick's Day parade in the country (after New York). In Boston, the parade in South Boston was historically contested over whether LGBTQ groups could march. In every bar in America, people who are not remotely Irish claim to be Irish for 24 hours. The Guinness consumption on this single day would fill the Chicago River, which they already dyed green.