What day of the week was September 20, 1498?

The day of the week September 20th, 1498 fell on was a Tuesday.

The 1498 Meiō Nankaidō earthquake generates a tsunami that washes away the building housing the statue of the Great Buddha at Kōtoku-in in Kamakura the Kanagawa, Japan; since then the Buddha has sat in the open air.