There are many different races in Singapore, and racial harmony is needed so that different races can co-exist peacefully. Racial tensions will affect Singapore badly, as seen in the 1964 race riots.

The 1964 Race Riots were a series of riots that took place in Singapore during two separate periods in July and September between Chinese and Malay groups. The first incident occurred on 21 July during a Malay procession that marked Prophet Muhammad's birthday. In total, the violence killed 36 people and injured another 556. About 3,000 people were arrested. The riots are also known as the Prophet Muhammad Birthday Riots, 1964 Racial Riots, and 1964 Sino-Malay Riots. At that time, Singapore was a state in the Federation of Malaysia.

A Crack Up at the Race Riots was created in 1998.

Airport Homes Race Riots happened in 1946.

Stonewall riots happened in 1969.