Rodney Riots happened in 1968.
The Rodney King riots started in 1992 in Los Angeles after four police officers were acquitted of charges related to the beating of Rodney King, a black man. The riots were fueled by long-standing racial tensions, economic disparities, and a perception of injustice in the criminal justice system.
This is a very asinine question. Riots happen in First World countries, too. Most of them are small in comparison to what's going on the Middle East right now, but they happen. It was just a couple years ago that France experienced a wave of riots after two teens got electrocuted while hiding from police, and some of the more notorious of riots occurring in the US include the Los Angeles riots following Rodney King's trial, the Watts riots of 1968.. and just take a look at some of the examples on the related link.
The precipitating factor in the Rodney King riots was the acquittal of four LAPD officers involved in the beating of Rodney King. The failure to convict the officers led to widespread outrage and protests that escalated into riots.
The Rodney King riots lasted for six days, from April 29 to May 4, 1992.
Priestley Riots happened in 1791.
Jaffa riots happened in 1921.
Tonypandy Riots happened in 1911.
Yizhou riots happened in 2002.
Meat riots happened in 1905.
Båstad riots happened in 1968.
Hădăreni riots happened in 1993.
Gastown Riots happened in 1971.