Definition:Infinity/Historical Note

Historical Note on Infinity
The concept of infinity has bothered scientists, mathematicians and philosophers since the time of (who accepted the concept as realisable)  (who did not).

The symbol $\infty$ for infinity was introduced by in the $17$th century.

It was in the $1870$s who finally made the bold step of positing the actual existence of infinite sets as mathematical objects which paved the way towards a proper understanding of infinity.