From Simple English Wikipedia, the free encyclopedia
Sunday is named after the Sun

Sunday is one of the seven days of the week. It is part of the weekend, along with Saturday. Sunday is the Sabbath or day of worship for most Christians (for example, Easter is celebrated on Sunday). Sunday is the beginning of the week in the United States, but is the end of the week in the United Kingdom.

Days of the Week
Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday