об истории

about history

→ о
phrase Rare #48,012
about history Об is a form of о used before words beginning with a vowel.
RU: Мы говорили об истории города.
EN: We talked about the history of the city.

Эта книга — об истории Китая.

This book is about the history of China.

Том читает книгу об истории Австралии.

Tom is reading a book about the history of Australia.

Он опубликовал книгу об истории монет.

He published a book on the history of coins.