Note: This calendar view maps the number of captures of https://en.unesco.org/futuresofeducation/media/oembed?url=https%3A//youtu.be/Bfdxd9QLtEE&max_width=920&max_height=480&hash=9J157Dlev4yX82haeVSScK8LkzoOJaw-bT1Nf4zAkog, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.