In Old Salem near Salem College is a small park. In the center of this park is a plaque that indicates that the 1st Official 4th of July Celebration in the USA was in Salem in 1783.
To claim this find you must go to this location and find the year that is printed at the bottom of the plaque. Put the year as your log password.
Please do not post pictures of the plaque but there are several vvery interesting and old buildings to take pictures.