Abu Bakr vs Wonjong of Goryeo

Abu Bakr launched military campaigns against Arabian tribes that renounced Islam or refused to pay zakat after Muhammad's death. The wars, led by generals like Khalid ibn al-Walid, reestablished Muslim control over Arabia and consolidated the caliphate.

After the death of Muhammad, Abu Bakr was elected as the first caliph (successor) at Saqifah. His election unified the Muslim community, though it caused controversy among some supporters of Ali. He became the leader of the nascent Islamic state.

Abu Bakr ordered the compilation of the Quran into a single written manuscript after many memorizers died in the Ridda Wars. Zayd ibn Thabit collected verses from various sources, creating the first official codex, which later served as the basis for Uthman's standard text.

Abu Bakr died after a brief illness, having designated Umar as his successor. His caliphate lasted only two years but established the foundations of the Islamic state, including the expansion beyond Arabia and the preservation of the Quran.

As a prince, Wonjong was sent as a hostage to the Mongol court to secure peace after Goryeo's submission. He spent several years in Mongolia, learning Mongol customs and forming ties with the imperial family.

Wonjong became king with Mongol support, marking the beginning of direct Mongol influence over Goryeo's throne. He agreed to pay tribute, provide troops, and accept Mongol oversight in exchange for peace.

Wonjong, with Mongol military aid, crushed the Sambyeolcho (Three Elite Patrols) rebellion, which opposed the peace with the Mongols. The rebels were defeated on Jeju Island, ending the last major military resistance to Mongol domination.

Wonjong arranged the marriage of his son (future King Chungnyeol) to a Mongol princess, Kublai Khan's daughter. This established a pattern of intermarriage that tied the Goryeo royal family to the Mongol Yuan dynasty.