Year 66 AD
"Halley's Comet" visited the Earth.
In the 66 AD a small group of Jewish extremists called Sicarii took over the mountaintop at the start of the Jewish revolt against the Roman Empire.
Ascii 66 ascii is character B
Unix time Unix time 66 is equal to Thursday Jan. 1, 1970, 12:01:06 a.m. GMT
Asteroids
(66) Maja is asteroid number 66. It was discovered by H. P. Tuttle from Harvard College Observatory on 4/9/1861.
Aircrafts and flights
06/24/1975 the Eastern Air Lines plane, flight number 66, Boeing 727-225 crashed in Jamaica, New York, US 107 passengers and 6 crew members died.
History and politics
United Nations Security Council Resolution number 66, adopted 29 December 1948. Demanding implementation of Resolution 61 in Palestine. Resolution text.
Mathematics
66 is the smallest abundant palindrome
66 is the number of 8-iamonds.
Religions
The Bible (which consists of 66 books) has about a million words.
Science
Dysprosium is the chemical element in the periodic table that has the symbol Dy and atomic number 66.
Tv, movies and cinematography
Star Wars - Order 66, also known as Clone Protocol 66, was a top secret order identifying all Jedi as traitors to the Galactic Republic and, therefore, subject to summary execution by the Grand Army of the Republic.
https://number.academy/66#google_vignette