September 30th, 1072 was a Monday.
September 24th, 1072 - October 23rd, 1072
Why not celebrate an alternative birthday? In 645 days, exactly on April 11th, 2028, people who were born on September 30th, 1072 will be 349,000 days old!
Fixed holidays (Christian feast day) which are celebrated on September 30th.
| M = 1000 | L = 50 | X = 10 | IX = 9 | I = 1 |
Yes: 1072 is a leap year, therefore has a 29th of February with an additional leap day and a total of 366 days (instead of the usual 365 days in a normal year).