This is the 12292nd most frequent Russian word.
исторически
"Historically."
In this sentence, 'исторически' refers to the historical development or evolution of circumstances that led to the city becoming a trade center.
Исторически сложилось, что этот город был центром торговли.
Historically, this city has become a center of trade.
Here, 'исторически' is used to indicate the historical classification or attribution of the castle to a specific era.
Этот замок исторически относится к эпохе Средневековья.
This castle historically belongs to the Medieval period.
In this sentence, 'исторически' is employed to describe the accuracy of the statements from a historical perspective.