Wednesday
Christmas Day was on a Friday in 1970.
Christmas Day in 1914 was on a Friday.
New Year's Day and Christmas Day of the same year never fall on the same day. The 1st of January 1945 was on a Monday and the 25th of December 1945 was on a Tuesday. That is completely normal. A week after Christmas Day is New Year's Day, but that is New Year's Day of the following year. So Christmas Day 1945 would have been on the same day of the week as New Year's Day 1946, the next year. In the same way, Christmas Day 1944 and New Year's Day 1945 were on the same day of the week.
Thursday
Sunday
Christmas day fell on a Thursday in 1986.
June 4 1946 was a Tuesday.
September 12, 1946 was a Thursday.
November 5th 1946 was a Tuesday.
October 12 1946 was on a Saturday.
November 6th, 1946 fell on a Wednesday.
March 4, 1946 was a Monday.