printTIH: July 7, 1928: Pre-sliced bread goes on sale for the first time
by francopoli
As commercially sliced bread resulted in uniform and somewhat thinner slices, people ate more slices of bread at a time, and ate bread more frequently, because of the ease of eating another piece of bread. This increased consumption of bread and, in turn, increased consumption of spreads, such as jam, to put on the bread.