15 August 1483 August 14, 2014 Author: Staff The Sistine Chapel is consecrated by Pope Sixtus IV. Famous Words of Inspiration..."If you wish to achieve worthwhile things in your personal and career life, you must become a worthwhile person in your own selfdevelopment." Brian Tracy — Click here for more from Brian Tracy Related posts: 15 August 1914 15 August 1969 15 August 1939 Categories: History Tags: 1483, 15 August