After its independence, Bangladesh became a parliamentary democracy, with Mujib as the Prime Minister. In the 1973 parliamentary elections, the Awami League gained an absolute majority. A nationwide famine occurred during 1973 and 1974, and in early 1975, Mujib initiated a one-party socialist rule with his newly formed BAKSAL. On 15 August 1975, Mujib and most of his family members were assassinated by mid-level military officers. A series of bloody coups and counter-coups in the following three months culminated in the ascent to power of General Ziaur Rahman, who reinstated multi-party politics, and founded the Bangladesh Nationalist Party (BNP). Zia's rule ended when he was assassinated by elements of the military in 1981.
Bangladesh's next major ruler was General Hossain Mohammad Ershad, who gained power in a bloodless coup in 1982, and ruled until 1990, when he was forced to resign after a massive revolt of all major political parties and the public, along with pressure from western donors (which was a major shift in international policy after the fall of the Soviet Union). Since then, Bangladesh has reverted to a parliamentary democracy. Zia's widow, Khaleda Zia, led the Bangladesh Nationalist Party to parliamentary victory at the general election in 1991, and became the first female Prime Minister in Bangladeshi history. However, the Awami League, headed by Sheikh Hasina, one of Mujib's surviving daughters, won the next election in 1996. It lost again to the Bangladesh Nationalist Party in 2001.
On 11 January 2007, following widespread political unrest, a caretaker government was appointed to administer the next general election. The country had suffered from extensive corruption, disorder and political violence. The new caretaker government has made it a priority to root out corruption from all levels of government. To this end, many notable politicians and officials, along with large numbers of lesser officials and party members, have been arrested on corruption charges. The caretaker government held what observers described as a largely free and fair election on 29 December 2008. Awami League's Sheikh Hasina won the elections with a landslide victory and took the oath of Prime Minister on 6 January 2009.