Nintendo has announced March 10th as Mario Day:

• Mario had a big milestone in 2015! He celebrated 30 years since he leaped his way into people’s hearts in 1985’s Super Mario Bros.Fans across the country celebrated with him in this fun video.
• Nintendo launched Super Mario Maker, a game that lets fans create and share their own Super Mario Bros. levels. So far, 6.2 million levels have been created by fans!
• Facebook’s engineers celebrated Mario by creating their very ownSuper Mario Maker levels for fans to play. Check them out here.
• A special 30th Anniversary Mario amiibo was released in a classic 8-bit design. The limited-edition figure was a tribute to the originalSuper Mario Bros. game that launched for the Nintendo Entertainment System in 1985.
• Mario hit the courts with the launch of Mario Tennis: Ultra Smash for Wii U. In the game, fans play as Mario and friends in intense tennis competitions.
• For the first time, Mario teamed up with his paper version, Paper Mario, in the colorful action RPG Mario & Luigi: Paper Jam for Nintendo 3DS.
• With the help of his voice actor, Charles Martinet, Mario celebrated the grand opening of the Nintendo NY store in Rockefeller Plaza.