Who invented projective space $\mathbb{P}^n$ as an extension of the usual affine space $\mathbb{A}^n$?

Who was the first person to consider projective closure of plane affine algebraic curves (curves in $\mathbb{A}^2$)? Was it the same person?

Who invented projective space $\mathbb{P}^n$ as an extension of the usual affine space $\mathbb{A}^n$?

Who was the first person to consider projective closures of plane affine algebraic curves (curves in $\mathbb{A}^2$)? Was it the same person?

Who invented projective space $\mathbb{P}^n$ as an extension of the usual affine space $\mathbb{A}^n$?

Who was the first person to consider projective closure of plane affine algebraic curves (curves in $\mathbb{A}^2$)? Was it the same person?

Who invented projective space $\mathbb{P}^n$ as an extension of the usual affine space $\mathbb{A}^n$?

Who was the first person to consider projective closure of plane affine algebraic curves (curves in $\mathbb{A}^2$)? Was it the same person?