This is the 7256th most frequent Japanese word.
世に
"In the world" or "publicly."
In this sentence, "世に" is used to indicate something being acknowledged or recognized on a global or societal level.
世に知られている事実は少ない。
Few facts are known to the world.
Here, "世に" emphasizes the widespread acknowledgment or fame of a talent on a societal scale.
彼の才能は世に広く認められている。
His talent is widely recognized in the world.
"世に" in this context conveys rarity or uniqueness observed in the world at large or in society.