that year; the same year
Refers to a specific year previously mentioned or understood from context. Often used in news, reports, and formal writing.
He graduated from university in 2010 and got married that same year.
He joined the company in 2015 and was transferred overseas in October of that same year.
He's the same age as me, so it's easy to talk to him.
He graduated from university in 1990 and got married that same year.
The two of them were born in the same year and were childhood friends.