Note: This calendar view maps the number of captures of https://unesdoc.unesco.org/in/documentViewer.xhtml?v=2.1.196&id=p::usmarcdef_0000367488&file=/in/rest/annotationSVC/DownloadWatermarkedAttachment/attach_import_29719715-cfd7-4874-a97a-11abd24e922e%3F_%3D367488eng.pdf&locale=fr&multi=true&ark=/ark:/48223/pf0000367488/PDF/367488eng.pdf, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.