An edit summary that links to this page via a left-pointing arrow (←) probably was left blank by the user and automatically filled in by the MediaWiki software. In other words, the user probably did not type the summary. Typing the summary is unimportant when a user creates a new page; leaving the summary area blank, the edit summary in this case is automatically the entered wikitext, up to the maximum length for this summary: ca. 160 characters, plus "Created page with '" at the start and "...'" at the end.