@misc{ enwiki:1222623360, author = "{Wikipedia contributors}", title = "Timeline of ancient Greek mathematicians --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", url = "https://en.wikipedia.org/w/index.php?title=Timeline_of_ancient_Greek_mathematicians&oldid=1222623360", note = "[Online; accessed 9-July-2024]" }
url
(\usepackage{url}
somewhere in the preamble), which tends to give much more nicely formatted web addresses, the following may be preferred:
@misc{ enwiki:1222623360, author = "{Wikipedia contributors}", title = "Timeline of ancient Greek mathematicians --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=Timeline_of_ancient_Greek_mathematicians&oldid=1222623360}", note = "[Online; accessed 9-July-2024]" }