Adha, a period of "communal enjoyment" for Muslims worldwide, has officially arrived. Here's what we've learned about the Islamic holiday.

Less spending, higher prices and fewer animal sacrifices subdued the usual festive mood as the Muslim holiday of Eid al-Adha was celebrated in many parts of the world.

You probably had no idea that over two billion people around the world are currently celebrating one of the most significant religious holidays on the planet. While you’re going about your regular Friday routine, millions of Muslims are engaged in prayers, family gatherings, and religious rituals that have been happening for over a thousand years.