Israel marks Hebrew Language Day on 21 of Tevet – the birthday of Eliezer Ben Yehuda, the father of modern spoken Hebrew. This year, the date corresponds to Dec 25, 2021. Jacob Richman here publicizes the Hebrew quizzes that Israeli dairy company Tnuva prints on milk cartons.
https://jr.co.il/only-in-israel/learning-hebrew-words-from-milk-cartons.htm