Dozens of soon-to-be graduates of a Michigan high school eschewed their cars and trucks and arrived in tractors, ATVs, golf carts and more. It was all part of Tractor Day, a celebration at Airport High that dates back to the 1980s. Most students arrived by 7:30 a.m. Friday, but the fun continued throughout the day with games, music, and lunch catered by a local restaurant. The annual event is not only a fun going-away celebration for seniors but also honors the area’s agricultural heritage. The