In honor of Preservation Month, The Historic Trust will host a free public archaeology event, “History Beneath Your Feet,” at Providence Academy, 400 E. Evergreen, Vancouver, from 12:30 to 4:30 p.m. May 19. The public is invited to watch archaeologists at work, view artifacts already found at the site, see a stone tool making demonstration and tour the Academy. Archaeological Investigations Northwest staff will excavate test units, supervising exhibits of historic artifacts already found at the site,and providing flintknapping demonstrations. Inside, Providence Academy docents will offer building tours from 12:30 to 2 p.m.