What Is Ramadan?

Ramadan dates
Muslims fast during the day during Ramadan. After the sun sets at the end of each day, the fast is typically broken with water and dates.
(Image credit: Galiyah Assan/Shutterstock)

Ramadan is the most sacred month of the year in Islamic culture. Muslims observe the month of Ramadan, to mark that Allah, or God, gave the first chapters of the Quran to the Prophet Muhammad in 610, according to the Times of India. During Ramadan, Muslims fast, abstain from pleasures and pray to become closer to God. It is also a time for families to gather and celebrate.

Ramadan is the ninth month in the Islamic calendar, which is a lunar calendar based on the cycles of the moon. Observances begin the morning after the crescent moon is visibly sighted, marking the beginning of the new month. Traditionally, people searched for the slight crescent using the naked eye, which has led to the declaration of different starting times for Ramadan, due to weather or geography. In order to have a more consistent start time for Muslims around the world, however, astronomical calculations are now sometimes used. Using science to mark the beginning of the month is controversial, however, and in many parts of the world, Ramadan still does not begin until religious leaders announce that they have personally seen the crescent moon, according to Holidays.net. 

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Rachel Ross
Live Science Contributor

Rachel Ross is a science writer and editor focusing on astronomy, Earth science, physical science and math. She holds a Bachelor of Arts in Philosophy from the University of California Davis and a Master's degree in astronomy from James Cook University. She also has a certificate in science writing from Stanford University. Prior to becoming a science writer, Rachel worked at the Las Cumbres Observatory in California, where she specialized in education and outreach, supplemented with science research and telescope operations. While studying for her undergraduate degree, Rachel also taught an introduction to astronomy lab and worked with a research astronomer.