Tunisia, the birthplace of the Arab Spring, held presidential elections on Sunday. It’s been more than three years since a Tunisian fruit vendor set himself on fire, triggering anti-government demonstrations that would spread throughout the Middle East. But while several other countries also overthrew their dictators, Tunisia is the only nation to have built a democracy that still endures. The country’s transition has had its problems, including terrorist attacks and rising tensions between Islamists and secularists. But it held parliamentary elections widely considered free and fair.