A kosher Shabbat dinner at a backpacker”s lodge in Dalat, Vietnam a 9,000 women-strong challah-baking event in Buenos Aires a glow-in-the-dark challah event in Costa Rica a binational gathering on the Mexican-US border a dinner for 1,000 Israelis in a shipping hanger in Tel Aviv and a Shabbat kept in full on the slopes of Mt…