Shiites from around the world observed the Ashura day of mourning (October 10), which commemorates the killing of the Prophet Muhammad’s grandson in Iraq in 680 AD.

Next week marks the seven-day festival of Sukkot, the Feast of Tabernacles (October 17-23). Jews recall their ancestors’ 40 years of wandering in the desert by building a fragile structure called a sukkah, which they use for prayers and meals.

Next week Bahá’ís celebrate the birth of the B’ab. Bahá’ís believe in the early 1800s, the B’ab was a messenger of God who prepared the way for the founder of their faith, Bahá’u’lláh.