“This must be Tuesday' said Arthur to himself, sinking low over his beer. 'I never could get the hang of Tuesdays.”

― Douglas Adams, The Hitchhiker's Guide to the Galaxy, misquoted.

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Have you ever looked up the etymology of 'Tuesday'? From wiki:

The name Tuesday derives from the Old English "Tiwesdæg" and literally means "Tiw's Day". Tiw is the Old English form of the Proto-Germanic god *Tîwaz, or Týr in Norse, a god of war and law.

The Latin name dies Martis ("day of Mars") is equivalent to the Greek ἡμέρα Ἄρεως. In most languages with Latin origins, the day is named after Mars, the Ancient Greek Ares Ἄρης .

In Japanese, the word Tuesday is 火曜日(ka youbi), meaning 'fire day' and is associated with 火星 (kasei): Mars (the planet), literally meaning "fire star". Similarly, in Korean the word Tuesday is 화요일 (hwa yo il), also meaning fire day.

In the Indo-Aryan languages Pali and Sanskrit the name of the day is taken from Angaraka ('one who is red in colour')[13] a style (manner of address) for Mangal, the god of war, and for Mars, the red planet.

In the Nahuatl language, Tuesday is Huītzilōpōchtōnal (Nahuatl pronunciation: [wiːt͡siloːpoːt͡ʃˈtoːnaɬ]) meaning "day of Huitzilopochtli". In the Aztec religion, Huitzilopochtli is a Mesoamerican deity of war, sun, human sacrifice and the patron of the city of Tenochtitlan.

Notice a pattern there? Quite the coincidence that such a diverse group of cultures would all associate this day of the week with Mars, a god of war.

Things that've happened on a Tuesday: 9/11, the Challenger explosion, D-Day, Columbine High massacre, and, uh.. Black Tuesday.

Tomorrow is 3/21/2017. In numerology terms, that's 3/3/10 where '33' is considered the 'master number' and 10 the number of god or the universe. I've learned better than to start guessing dates of upcoming major events, but if I were going to make a list of dates to keep an eye on, that'd certainly be one of them.