MacTutor
25th July
On this day in 1610, Galileo first observed the rings of Saturn through a telescope without realising what they were.
On this day in 2022 Google released a Banach doodle (commemorating the day in 1922 he officially became a professor).
On this day in 2022 Google released a Banach doodle (commemorating the day in 1922 he officially became a professor).