The prime minister pledged to make the use of pounds and ounces official again after Brexit. We checked sentiment at Shrewsbury Market.
Pepsi's 2-liter bottle brought more soda into households while the nation flirted with the metric system.
We chart the history of the U.S. relationship with the metric system.
John Bemelmans Marciano says the U.S has basically gone metric, if not officially.
