Translation of "Episodes" in Japanese

Are there any other interesting episodes in history?

他にも何か歴史上の面白いエピソードってありますかね？

How many episodes of One Piece have you watched?

ワンピース、何話見ましたか？

And during these depressive episodes, I would have crying spells,

その期間中 涙の止まらなくなることが何度もあり

And often we're recalling ideas in these thought-wandering episodes.

過去に思考をさまよわせていると 昔の考えを思い出すことがよくあります

But just as bizarrely as these depressive episodes came, they left.

こんな症状が 不思議と急に現れ 急に消えるのです

And they were replaced with episodes of genuine stability and happiness,

後には安定と幸福がやって来ます