October 20th, 1144 was a Friday.
September 24th, 1144 - October 23rd, 1144
Why not celebrate an alternative birthday? In 942 days, exactly on February 22nd, 2029, people who were born on October 20th, 1144 will be 323,000 days old!
Fixed holidays (Christian feast days) which are celebrated on October 20th.
| M = 1000 | C = 100 | XL = 40 | X = 10 | IV = 4 |
Yes: 1144 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).