Eliminated and obsolete Russian letters

These are the Russian letters that were eliminated in 1918: Ii Ѳѳ Ҍҍ Ѵѵ (I, Fita, Yat, Izhitsa)

These are the Russian letters that were in disuse by 1750 (18th century): Ss Ѯѯ Ψψ Ѡѡ Ѫѫ Ѧѧ Ѭѭ Ѩѩ (Zelo, X, Ps, Omega, Big Yus, Small Yus, Big Yus Iotified, Small Yus Iotified)

There are some other letters that we don’t use anymore in modern Russian, but these are some letters that are no longer in modern Russian, but found in other Slavic languages: Є Ꙋ Ꙑ Ꙗ Ѥ Ꙉ Ҁ

Btw, there was a mistake in the video. It wasn’t in the year 750 when the letters Ѕ Ѯ Ѱ Ѡ Ѫ Ѭ Ѧ Ѩ were in disuse. It was supposed to be 1750. I just forgot to put the 1 in the beginning of the number. So I put 18th century on it so you would be able to understand it better.

Also some other facts: this alphabet is called Old Church Slavonic, which was also known as Old Bulgarian from the years 814 - 916 AD (9th - 10th century)