Searching `in:archive` sorts by archival date. [Medium article about recovering archived emails](https://medium.com/@MattGyverLee/oops-i-just-archived-a-bunch-of-gmail-messages-71aae70322d7): > To search for recently archived emails in Gmail, open Gmail and in the > search box, type “in:archive” (without the quotes) and press enter. It > will show only messages that have been archived (not including > messages in the inbox like All Mail). > > The magic of this command is that now the dates of the messages > represent the date of archival (not the date of receipt)! The results > should already be sorted by date that the message was archived.