This is the 417th most frequent Turkish word.
tarihinde
"tarihinde" means "in the history of" or "on the date of" in English.
Here, 'tarihindeki' is used as an attributive modifier referring to the events within the history of something.
Bu kitap 1980 yılında yazılmış, tarihindeki olayları ele alıyor.
This book was written in 1980, addressing events in its history.
'Tarihinde' specifies a particular date when an event occurred, functioning as a time marker.
Seminer 25 Ocak tarihinde gerçekleşti.
The seminar took place on January 25.
'Tarihinde' refers to occurrences or actions happening within a time span related to the city's historical timeline.