Today is not World IP Day (nor that one), which is August 9. Some celebrate today as IP Day counter to Columbus Day, but that puts too much emphasis on Columbus as a singular actor/great man/abominable person with respect to all pre-1492 western hemisphere populations. Had Columbus never been born, or his first voyage swallowed by the Atlantic before reaching land, it is hard to imagine the result for said populations over the next centuries being any different — merciless conquest by eastern hemisphere humans and microbes. So celebrate World IP Day on August 9, and rub out Columbus Day because he was a murderer and slaver. Criminal procedures, not clash of civilizations ones, are to be recommended for Columbus, as they are for any modern day terrorist.
But one day is only a beginning. Wikipedia:
Veneration of Columbus in America dates back to colonial times. The name Columbia for “America” first appeared in a 1738 weekly publication of the debates of the British Parliament. The use of Columbus as a founding figure of New World nations and the use of the word “Columbia”, or simply the name “Columbus”, spread rapidly after the American Revolution. Columbus’ name was given to the federal capital of the United States (District of Columbia), the capital cities of two U.S. states (Ohio and South Carolina), and the Columbia River. Outside the United States the name was used in 1819 for the Gran Colombia, a precursor of the modern Republic of Colombia. Numerous cities, towns, counties, streets, and plazas (called Plaza Colón or Plaza de Colón throughout Latin America and Spain) have been named after him. A candidate for sainthood in the Catholic Church in 1866, celebration of Columbus’ legacy perhaps reached a zenith in 1892 with the 400th anniversary of his first arrival in the Americas. Monuments to Columbus like the Columbian Exposition in Chicago and Columbus Circle in New York City were erected throughout the United States and Latin America extolling him.
There should be no veneration or extolling of slave owners. Everything named after Columbus (fun fact: Colombo, the city in Sri Lanka, is not) should be renamed, along with everything named after Washington, Jefferson, Madison, Monroe, Jackson, Van Buren, Harrison, Tyler, Polk, Taylor, Pierce, Buchanan, Johnson, Grant, Penn, Franklin, Houston, Austin, and many more.