A form of government ruled by a single person is called autocracy. In an autocratic system, one individual holds absolute power and authority over the state, often without effective constitutional limitations. Autocrats can come to power through various means, including military coup, hereditary succession, or political manipulation. The governance style can vary, with some autocrats ruling benevolently while others may exercise oppressive control, limiting political freedoms, censoring media, and suppressing dissent. While autocracies can provide decisive leadership and stability, they often face criticism for human rights abuses and lack of democratic processes, leading to significant societal unrest and opposition.