For Baha’is, sundown April 20th marks the beginning of the 12-day festival of Ridvan. It celebrates the founder of their faith, Bahaullah, declaring his position as the Promised One of all religions.

Also this week, Buddhists in many countries, including Thailand and Sri Lanka, celebrate the New Year for three days.

And on Friday evening (April 22), Jews around the world begin their 8-day observance of Passover, when families gather for a special meal, a seder, to recall their ancestors’ exodus from Egypt.