calendar fact of the day: january 1 of any year whose number is a multiple of 400 is a saturday. From this you can work out the day of the week of any date. thanks wikipedia
calendar fact of the day: january 1 of any year whose number is a multiple of 400 is a saturday. From this you can work out the day of the week of any date. thanks wikipedia
This is the personal website of Cal Henderson, Slack co-founder & CTO.
I give occasional talks, write code and sometimes articles.
aws books cheese code covid emoji fonts food games halflife havana ibm lego maps minecraft music php programming reading slack technology tube via-matts wiring
apple awesome bacon code coding comics design flickr food games javascript lego maps movie music perl php programming software tech tv video visualization web