[object Object]
In Islam, Arbaeen, a Shia Muslim observance occuring 40 days after the Day of Ashura, commemorates the martyrdom of Husayn ibn Ali (grandson of Prophet Muhammad) and includes an annual pilgrimage to Karbala, where 20 million pilgrims gather to pay respects in what is among the largest peaceful gatherings in history.
Here are some ways you can observe this day according to Shia Islamic tradition:
