President of Nigeria became the newly elected civilian president. Obasanjo served two terms in office. In May 2007, Alhaji Umaru Yar'Adua was sworn in as President of the Federal Republic of Nigeria, the 13th head of state of Nigeria. Yar'Adua died on 5 May 2010 in the Presidential villa, in Abuja, Nigeria. On 6 May 2010, the Vice President Goodluck Jonathan was sworn in as President of the Federal Republic of Nigeria and the 14th head of state. On 29 May 2015, Muhammadu Buhari was sworn in as President of the Federal Republic of Nigeria and the 15th head of state after winning
Head of state used his power to appoint Adolf Hitler as Chancellor without consulting the Reichstag. "Note: The head of state in a "presidential" system may not actually hold the title of "president" - the name of the system refers to any head of state who actually governs and is not directly dependent on the legislature to remain in office." Some constitutions or fundamental laws provide for a head of state who is not only in theory but in practice chief executive, operating separately from, and independent from, the legislature. This system is known as a "presidential system" and sometimes called the "imperial