Searched for http://www.albertasource.ca/alphabet/flist_selected_letter.php?letter_id=m&alphabet_id=adult 
Note: This calendar view maps the number of captures of http://www.albertasource.ca/alphabet/flist_selected_letter.php?letter_id=m&alphabet_id=adult, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.