The world s most unique reference book! About the Book Founded in 1957, and now with more than 12,500 entries, Chase s Calendar of Events has become the most comprehensive and authoritative reference available in the world on special days, weeks, and months (Chase s is the only reference for these), special events, national and international holidays, federal and state observances, international religious celebrations, celebrity birthdays, astronomical phenomena, major sporting events and more. Included are important historical and biographical anniversaries as well as celebrity birthdays. Coverage is international in scope, with national/independence days/major holidays for every nation on earth. Extensive coverage in particular of US, Canada, United Kingdom.