Maʼdi (pronounced [màɗí]) is a Central Sudanic language spoken in Uganda and South Sudan. It is one of the Moru–Madi languages. The Madi people refer to their language as Maʼdi ti, literally "Maʼdi mouth".
The Maʼdi people are found in Magwi County in South Sudan, and in Adjumani and Moyo districts in Uganda. Their population is about 390,000 (90,000 in South Sudan).
The First Sudanese Civil War (also known as the Anyanya Rebellion or Anyanya I, after the name of the rebels, a term in the Madi language which means 'snake venom') was fought from 1955 to 1972 between the northern part of Sudan and the southern Sudan region which demanded representation and more regional autonomy. The war was divided into four major stages: initial guerrilla warfare, the creation of the Anyanya insurgency, political strife within the government, and establishment of the Southern Sudan Liberation Movement. Around a million people died over the course of the nearly 17-year long war.
Although the Addis Ababa Agreement ended the war in 1972, it failed to completely dispel the tensions and addressed only some of the issues stated by southern Sudan. The breakdown of the initial appeasement later led to a reigniting of the north–south conflict during the Second Sudanese Civil War, which lasted from 1983 to 2005.
The Anyanya (also spelled Anya-Nya) were a southern Sudanese separatist rebel army formed during the First Sudanese Civil War (1955–1972). A separate movement that rose during the Second Sudanese Civil War were, in turn, called Anyanya II. Anyanya means "snake venom" in the Ma'di language.