Square Root Day 2025 Celebration. Entries could include creating the largest square root sign from people, serving root beer in square glasses to the most people, or cutting roots into squares, or cubes, for a square. Apparently today, 4/4/16, is square root day.
April 4, 2016 (4/4/16) was a square root day,. Calendar for the whole year, calendar for any month, lunar calendar,.