"Archbishop Ussher's specific chronology" . "related article on the chronology" . "date of Creation" . "Biblical timescale" . "James Ussher" . "James Ussher's famous 17th-century chronology" . . "Ussher chronology" . . "date of creation" . . "6,000 years ago" . . . . "calculation of the year of creation" . "Ussher chronology" . . . "chronology" . "Earth as approximately 6,000 years old" .