The learned Bishop Ussher knew that the Earth, and hence all of creation everywhere, was created at 6:00 p.m., Saturday, October 22, 4004 BC. John Lightfoot said that is was about that time and date but in 3929 BC, Johannes Kepler said that it was in 3992 BC, and Isaac Newton thought it was around 4000 BC. Interestingly, Ussher originally agreed with Newton but moved the date back four years to accommodate the error caused by Dennis the Small.