And the people sat down to eat and to drink, and rose up to play. – Bible, Exodus XXXII

I believe most distempers proceed from too much sitting still. РMarie de Rabutin-Chantal, letter to her daughter Fran̤oise-Marguerite de S̩vig

[T]hey marched and counter-marched, clapped their hands, stamped hard upon the floor, and performed various evolutions for the purpose of circulating the blood, which by sitting too long is apt to stagnate, and render them, particularly in this climate, dull and sleepy. – Joseph Holt Ingraham, South-West, 1835 [Originally published anonymously, “By a

Still, it is customary to keep pupils sitting too long at once. They ought to stand occasionally, or march around the room; and they should be required to exercise a few minutes in the open air, once an hour, at least. – American Annals of Education and Instruction, April 1832