This Saturday marks the 398th anniversary of the “First Encounter” — that is, the first meeting between the settlers from the English ship, the Mayflower, and warriors from the Nauset tribe, on the bayside shore of what is now Eastham. First Encounter Beach will be the site of the Eastham 400 Commemoration Committee unveiling its plans for the quadricentennial event in 2020. The press conference will be at the First Encounter monument on Dec. 8 at 9 a.m. In the event of bad w