A Palestinian vendor sells traditional Ramadan lanterns at a market on the first day of the Muslim fasting month of Ramadan in Gaza City, on May 6, 2019. Ramadan is an Islamic religious observance of the ninth month of the Islamic lunar calendar. It begins with the sight of the new moon and continues for about 30 days. For Muslims, Ramadan is considered the holiest month of the Islamic year. (Xinhua)