In the early 1970s, Bruce Lee made nunchaku (nunchucks) cool — kids were building their own and buying them in record numbers. But the nunchucks craze coincided with something much bigger: the birth of a radical new Asian American identity. Roman Mars and historian Jeff Chang trace how nunchucks went from ancient weapon to symbol of resistance — not only uniting Asian Americans in the fight for their own rights, but connecting them to every other group pushing back from the margins. A History of the United States in 100 Objects is a production of 99% Invisible and BBC Studios.