Goofs

Odessa hasn't been in Russian since 1917.

(Random fact: Odessa was founded by Catherine the Great and was the biggest, busiest port in Russian.)

That's not how you say matryoshka. "Mat-ree-osh-ka" is not correct, it's "Mat-ro-shka".

At around 19 mins, the lab tech says that people who go from writing Cyrillic to English often write their nines as a lower case 'g'. This is not true. The 9 does have a curled tail, but that's how most Europeans write it. It's also how a 9 is written on every keyboard.