More Big Days

10 February - Feast of St Paul's Shipwreck (Malta)
Why? Because it's Malta's only appearance in the Bible (Acts 28:1ff.). And he's the patron saint of Malta. The text says "Melita", but scholars don't seem to have a problem with the identification. The Maltese of the time (?59 AD) were Roman citizens, and treated Paul (also a Roman citizen) well. They are described as _barbaroi_, meaning they didn't speak Greek. (Fr McKenzie thinks probably Punic.)
Paul was on his way to Rome to appeal to Caesar against charges of making trouble.
Why 10 February? Don't have any information on that.
https://axhotelsmalta.com/discover-activities-in-malta/activities/feast-st-pauls-shipwreck-malta/
11 February - National Foundation Day (Kenkoku Kinen no Hi) (Japan)
Proclaimed in 1873; abolished after WWII; revived 1967. 11 February (660 B.C.) is the accession date of Emperor Jimmu, first emperor of Japan. (All this is pretty legendary, but...) also "coincidentally" (Wiki), date of promulgation of the Meiji Constitution (1889), i.e. the foundation of modern Japan.
"In contrast with the events associated with earlier Kigensetsu, celebrations for National Foundation Day are relatively moderate. During the post-war period and up to 2000, there were two opposing sentiments: a caution to prevent ultra-nationalism and a desire to revive cultural traditions. As such people generally didn't overtly express nationalism or patriotism in public. As a public holiday, government offices, schools, banks, and many companies are closed."
https://en.wikipedia.org/wiki/National_Foundation_Day_(Japan)
12 February - Makha Bucha Day (Thailand)
Māgha Pūjā, a Buddhist festival  (also celebrated in Cambodia, Laos, Myanmar and Sri Lanka). Magha is the name of the third lunar month, and Puja is a ritual or religious observance. "it celebrates a gathering that was held between the Buddha and 1,250 of his first disciples, which, according to tradition, preceded the custom of periodic recitation of discipline by monks. On the day, Buddhists celebrate the creation of an ideal and exemplary community, which is why it is sometimes called Saṅgha Day, the Saṅgha referring to the Buddhist community..."
"...became widely popular in the modern period, when it was instituted in Thailand by King Rama IV in the mid-19th century."
” It is an occasion when Buddhists go to the temple to perform merit-making activities, such as alms giving, meditation and listening to teachings. It has been proposed in Thailand as a more spiritual alternative to the celebration of Valentine's Day."
https://en.wikipedia.org/wiki/M%C4%81gha_P%C5%ABj%C4%81