Ramadan stems to the time of the prophet Mohammed.
"It is one of the most joyful days of the community in the year, and a lot of people come from a lot of different places in the suburbs to celebrate the end of Ramadan after 30 days of fasting where we break the fast and celebrate giving thanks to God," said Safaa Zarzour, event organizer, Mosque Foundation.
Gov. Pat Quinn was also on-hand and said it was an honor and a privilege to speak to Illinois's Muslim community and celebrate the important holiday.