When I played high school ball, back in the dark ages (late fifties), I never heard the term "Box," and I don't remember it coming in until maybe ten or fifteen years ago.
What we heard back then WAS "eight men on the line of scrimmage."
Our head coach, Jim Bain, was second string quarterback at Mississippi State, and he taught us to run and PASS the ball.
When he left before my 11th grade year, a new coach came in, and we didn't throw one pass until the last game of the year. Meanwhile Jim Bain had moved eight miles away to coach our rival. When our game with that rival team came up about the fifth game of the season, Jim put eight men on the line. He had a little loud-mouthed, one-armed linebacker backing up the line, and two defensive backs behind him. Our coach STILL never had us pass the ball. They beat us 38-6.
Years later I called Jim up, and when I brought up the subject of his successor never having us pass until the last game, Jim said, "He had three plays." I knew what he meant -- quickie on the left side, fullback up the middle on the belly series, and left halfback off right tackle on the belly series.