If I may be so bold, let me extend the usefulness of Ray’s set of links by pointing out that after you click on one of the “Since year” links, you can select “advanced filters” at the top of the page and then select a narrower date range. The entry fields are at the bottom of the right column. Confirm that “after” is still showing and then enter whatever date you like. Or manually tweak the date that is already in the search box - just be sure to keep the formatting you see there.
–Peter