Assertion: latin alphabet's letter | /r/HasProperty | proposed by marin drinov
Facets:
Source sentences:
text: Several Cyrillic alphabets with 28 to 44 letters were used in the early and middle 19th century during the efforts[clarification needed] on the codification of Modern Bulgarian until an alphabet with 32 letters, proposed by Marin Drinov, gained prominence in the 1870s: it was used until the orthographic reform of 1945, when the letters yat (uppercase Ѣ, lowercase ѣ) and yus (uppercase Ѫ, lowercase ѫ) were removed from its alphabet, reducing the number of letters to 30.