Nigeria's first President.

**The reasoning** Nigeria became a republic on October 1, 1960, and adopted a **parliamentary system** initially. In this system, there's a crucial distinction: the **Head of State** (ceremonial leader) and the **Head of Government** (executive power). Dr. Nnamdi Azikiwe became Nigeria's **first President** (Head of State) when Nigeria transitioned to a republic on October 1, 1963. Before that, from 1960-1963, he was Governor-General. The President's role was largely ceremonial under the parliamentary system. Tafawa Balewa was the **Prime Minister** (Head of Government) — he wielded actual executive power but was NOT president. **Why the wrong options tempt you** **A) Tafawa Balewa** — This is the classic trap! He was Prime Minister and many remember him as the "first leader," but his title was *not* President. **C) Awolowo & D) Ahmadu Bello** — Both were prominent founding fathers (Awolowo: opposition leader; Bello: Northern Premier), but neither held the presidency. **Quick takeaway** Remember the distinction: **Azikiwe = first President (ceremonial); Balewa = first Prime Minister (executive power)**. The title matters in history questions!