This is why we have Leap Years — and what happens if we don't
Why the open web links it
Explains the purpose of leap years and the consequences of not accounting for Earth's orbital cycle.
Linked by 5 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including inverse.com, pronews.gr, cosmolibrary.com, longluo.me, whatsupthespaceplace.com.