This calendar creator makes a calendar with holidays for many countries for any year or month, with print option and rich customization features.
http://www.timeanddate.com/calendar/

Organize your schedule and share events with friends Wouldn't it be great to be able to keep track of all the events in your life, coordinate schedules with friends and family, and ...
http://www.google.com/calendar/

The word Calendar consist of two words: 1) Cal ( in Pashto means Year, in Hindi and Persian is Sal- also means Year).In Pashto question : so kalen ye? means how old are you? 2 ...
http://en.wikipedia.org/wiki/Calendar

Calendar
http://www.timeanddate.com/

calendar n. Any of various systems of reckoning time in which the beginning, length, and divisions of a year are defined
http://www.answers.com/topic/calendar