Why did the Chofetz Chaim refuse to stay in Warsaw for Shavuos?
In what language did Hashem say the Ten Commandments at Mount Sinai?
And what script was used for writing the Tablets given at the Sinaitic Revelation?
... These questions and more are discussed in my book Lashon HaKodesh: History, Holiness, & Hebrew published by Mosaica Press now available in an affordable paperback edition.
You can order directly from Mosaica Press or Feldheim.com