Millions of Shiite Muslims across the world commemorate the mourning day of Ashoura - The Hill

1. Millions of Shiite Muslims across the world commemorate the mourning day of Ashoura  The Hill
2. In pictures: Shia Muslims take part in Muharram gatherings in run up to Ashura  Middle East Eye
3. Ashura is the largest annual pilgrimage in the world. So what does it commemorate?  ABC News