2025 calendar is the same as the 1969 one

There are only 14 different possible calendars (7 possible days of the week for January 1st, times 2 for leap year or not). This isn't anything special.

Born in 1953, so been there, done that.

... and the 1997 one.<p>The calendar repeats every 28 years (give or take the hiccough about leap years and years divisible by 100 but not 400)