[Isofarro]

The first no-castling match has already taken place earlier this month as part of the London Chess Classic

https://www.londonchessclassic.com/press/lcc19_pr5.htm

The current castling rule was an innovation of the Italians when the game was brought in from India. It, along with pawns moving two squares on their first move, ushered in the Italian School of Chess, known for its slashing attacks, sparkling sacrifices and all out aggression.

However, the Indian form of the game did have something like castling, the king could move from its start square to g2, where a fianchetto'ed bishop would normally sit.

[nwsm]

>known for its slashing attacks, sparkling sacrifices and all out aggression

Interestingly this goes against the entire point of the article, that castling results in defensive play which results in draws.