ADDIS ABABA — Ethiopia’s new Prime Minister Abiy Ahmed apologized to people harmed in recent political unrest and reached out both to the political opposition and longtime rival Eritrea at his swearing-in on Monday. Abiy is the first ethnic Oromo to be selected by the ruling Ethiopian People’s Revolutionary Democratic Front (EPRDF) as prime minister in its 27 years of rule. In a parliamentary session, Abiy formally replaced Hailemariam Desalegn, whose surprise resignation in February came after more than two years of anti-government protests led by the Oromo. “Ethiopians living abroad and Ethiopians living here, we need to forgive each other from the bottom of our hearts,” Abiy said in a speech after he was sworn in. He had earlier exchanged a copy of the constitution and a hug with Hailemariam, who has stepped down from all party leadership positions. It is the first time power has been transferred from one sitting prime minister to another in modern Ethiopia. “In this peaceful transfer today, we are beginning a new chapter. This is a historic day,” Abiy said in his remarks. The 42-year-old former minister of science and technology takes the reins of one of Africa’s fastest-growing and most-populous economies amid hopes that he will change the EPRDF’s authoritarian