Pascal's 1630 Machine: The First Calculator! Pascaline Review / HowTo
Why the open web links it
Examines an original 17th-century Pascaline, one of the first mechanical calculators, and its historical significance.
Linked by 2 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including hackaday.com, mondo.rs.