April 15, 1452 was a

Thursday

How to solve: April 15, 1452

1. 1
   Century anchor1400s→Friday (5)
   Practice →
2. 2
   Divide by 1252 ÷ 12→4
   Practice →
3. 3
   Remainder of 1252 % 12→4
   Practice →
4. 4
   Divide remainder by 44 ÷ 4→1
   Practice →
5. 5
   Year's doomsday(5 + 4 + 4 + 1) % 7→0 → Sunday
   Practice →
6. 6
   Month doomsdayApril→4th
   Practice →
7. 7
   Distance15 − 4→11
   Practice →
8. 8
   Final answer(0 + 11) % 7→4 → Thursday