Wednesday
January 18 1919 was a Saturday.
Probable Wednesday
what day of the week was January 1st 1936
It was a Sunday :)
1st January 1960 was a Friday.
January 1st, 0001 fell on a Tuesday.
Friday
It can be on any day [Saturday, January 1, 2011]
1st of January 2010 is a Friday.
Wednesday
He died on Monday, january 6, 1919.
Wednesday