James Joyce has “Bloomsday”. Robert Burns has “Burns Night”. Now Sholem Asch has his own literary celebration as well, “Asch Wednesday.”. The program, held this year for the third time to coincide with Ash Wednesday, is the brainchild of Yiddish Book Center bibliographer and Asch’s great-grandson, David Mazower. The first two “Asch Wednesdays” were held in Manhattan. The third iteration will be streamed online, allowing for the participation of actors and singers from the US, Argentina, Poland, Israel and Canada.