13 May incident

The 13 May incident was a period of violent racial conflict that erupted in Kuala Lumpur, Malaysia, on 13 May 1969, following that year's general election. The clashes primarily involved the Malay and Chinese communities and were caused by political and ethnic tensions after opposition parties such as the Democratic Action Party (DAP) and Gerakan made substantial electoral gains in the election, challenging the ruling Alliance Party's dominance.

In response, the king, on the government's advice, declared a state of emergency, suspended parliament, and entrusted civilian administration to the National Operations Council (NOC) under Deputy Prime Minister Tun Abdul Razak. While official sources cited 196 fatalities, other sources suggest the toll was much higher—from nearly 600 to over a thousand, with most victims being Chinese. Thousands were injured or displaced, and curfews were enforced to restore order.

The event was significant in Malaysian politics, as it forced the first prime minister, Tunku Abdul Rahman, to step down from office and hand power to Abdul Razak Hussein. It was also a pivotal moment that reshaped Malaysia's socioeconomic policies, as Abdul Razak's government shifted their domestic policies to favour Malays with the implementation of the New Economic Policy (NEP), and the United Malays National Organisation (UMNO) restructured the political system to advance Malay dominance through affirmative action in accordance with the ideology of Ketuanan Melayu (lit. "Malay supremacy").

The incident has remained a sensitive and, at times, taboo topic in Malaysian society, with open discussion often avoided due to prevailing political sensitivities. Ethnic relations between the Malay and Chinese communities have stabilised since the incident but remain fragile, occasionally strained by political rhetoric and socioeconomic disparities.