Wedding anniversary years have well-established connections now common to most nations: 5th Wood, 10th Tin, 15th Crystal, 20th China, 25th Silver, 30th Pearl, 35th Jade, 40th Ruby, 45th Sapphire, 50th Gold, 60th Diamond, and 70th Platinum. In English speaking countries the first, wooden, gift was cut on the day of celebration and then presented to the wife as a finished article before the next two quarter days had passed. The modern tradition may have originated in medieval Germany where, if a married couple lived to celebrate the 25th anniversary of their wedding, the wife was presented by her friends and neighbours with
Puyo Puyo!! 20th Anniversary Puyo Puyo!! 20th Anniversary Puyo Puyo!! 20th Anniversary is a puzzle game developed by Sonic Team and published by Sega. The game honored the twentieth year of the "Puyo Puyo" series, and was first released for the Nintendo DS in July 2011, and later for Wii, Nintendo 3DS, and PlayStation Portable in December 2011. In total, the game has 20 modes of gameplay, including 8 new modes, and 5 hidden modes from "Puyo Puyo! 15th Anniversary". Except in Mission and Pair Puyo modes, a player is eliminated when he/she tops out, and the last player (or side) standing wins the