Both “for the first time in …” and “the first something in …” are expressed using “振り(ぶり)” in Japanese.

• 田舎に五年ぶりに帰った（いなかにごねんぶりにかえった）-> I went back to my hometown for the first time in five years
• カブスは108年ぶりに優勝した -> The Cubs won the first championship in 108 years, The Cubs won the championship for the first time in 108 years
• 晴れたのは一週間ぶりだ（はれたのわいっしゅうかんぶりだ）-> It is the first sunny day in a week