http://entrenandoaikido.com/un-14-de-diciembre/

Translation

Today 14th December is the hundred thirty-one anniversary of the birth of Morihei Ueshiba in Tanabe.
http://en.wikipedia.org/wiki/Morihei_Ueshiba

In Tokyo today Gishi-sai festival is celebrated in the Sengakuji temple dedicated to the famous 47 ronin ( masterless samurai). The 14th December, 1702 avenged the death of their master, attacking the mansion Kira Kozukenosuke Yoshinaka in Edo, who had provoked their master Asano in the palace of Shogun, which resulted in death sentence Asano, to commit suicide .
http://en.wikipedia.org/wiki/Forty-seven_Ronin