How did Kuina die in One Piece manga?

Kuina passed away in the manga because of a fatal stumble. This incident left a lasting impression and influenced the plot and characters' developments.

It's quite complex. There's a connection based on Zoro's past and his determination related to Kuina.

The connection between Kuina and One Piece manga is that she was an important figure in Zoro's past. Her presence and their childhood pact about becoming great swordsmen shaped Zoro's aspirations and drive throughout the story of One Piece.

Whitebeard died during the Marineford War. He fought against many powerful enemies and suffered multiple fatal injuries.

Whitebeard passed away in the One Piece manga at Marineford. He was betrayed and outnumbered, yet he fought with all his might until his last breath. This event had a significant impact on the story's development.

Whitebeard died in a fierce battle during the Marineford War. He was attacked by many powerful enemies and sustained multiple fatal injuries.

As of now, Sabo is still alive in the One Piece manga. The story continues to develop with him playing an important role.

No, Garp didn't die in the One Piece manga as of the latest chapters.

As far as I'm aware, Kiku is still alive in the One Piece manga. The storyline hasn't depicted her death yet.

As of now, Kiku is still alive in the One Piece manga. The story has many twists and turns, but her fate hasn't included death yet.