By calculation (generator: ["day_week@trueknowledge.com"]) I know that:
Wednesday
is the day of the week of
January 23rd 1980
Friday
is the day of the week of
January 23rd 1981
Saturday
is the day of the week of
January 23rd 1982
Sunday
is the day of the week of
January 23rd 1983
Monday
is the day of the week of
January 23rd 1984
Wednesday
is the day of the week of
January 23rd 1985
Thursday
is the day of the week of
January 23rd 1986
Friday
is the day of the week of
January 23rd 1987
Saturday
is the day of the week of
January 23rd 1988
By calculation (generator: ["timepoint_when_day_happened_on@trueknowledge.com"]) I know that:
January 23rd 1982
is a timepoint when the day happened on
Saturday, the 23rd of January and 1980s
January 23rd 1988
is a timepoint when the day happened on
Saturday, the 23rd of January and 1980s