Gerbert of Aurillac vs Tonyukuk

Gerbert became master of the cathedral school at Reims, where he taught logic, mathematics, and astronomy. He used the abacus and armillary sphere, reviving the study of the quadrivium in France.

Gerbert studied in Catalonia and brought back knowledge of Arabic numerals, the abacus, and astronomical instruments. He wrote works explaining these concepts, contributing to the spread of Hindu-Arabic numeral system in Christian Europe.

Gerbert constructed a mechanical clock for the city of Magdeburg, using a weight-driven mechanism. This was one of the earliest known mechanical clocks in Europe, demonstrating his engineering skills.

Gerbert was elected Pope, taking the name Sylvester II. As pope, he continued his scholarly work and corresponded with rulers across Europe, promoting learning and reform within the Church.

Tonyukuk served as the chief advisor and strategist to Bilge Qaghan during the restoration of the Eastern Turkic Khaganate. He counseled against premature attacks on the Tang and advocated for a gradual buildup of strength, which proved successful.

Tonyukuk led a military campaign against the Tang dynasty and their Turkic allies. He used guerrilla tactics and surprise attacks to defeat larger Tang forces, securing the khaganate's independence and expanding its territory.

Tonyukuk commissioned his own memorial inscription, the Tonyukuk inscription, which is one of the Orkhon inscriptions. It recounts his life, his role in the khaganate's revival, and his military campaigns, providing a detailed first-person account of Turkic history.

Tonyukuk died of natural causes at an advanced age. His death marked the end of an era for the Eastern Turkic Khaganate, as he was the last of the great founding figures. His strategic wisdom was greatly missed in the subsequent years.