Antiochus III the Great vs Kanishka

Antiochus III defeated Ptolemy IV's army at Raphia in the largest battle of the Syrian Wars. He used war elephants and a phalanx of native Egyptians to secure victory, recapturing Coele-Syria and Palestine from Ptolemaic control, restoring Seleucid power in the region.

Antiochus III led a major military expedition to the eastern satrapies of the Seleucid Empire, including Parthia, Bactria, and India. He reasserted Seleucid authority, received tribute from local rulers, and secured the eastern borders, earning the title 'the Great'.

Antiochus III invaded Greece, leading to war with the Roman Republic. He was decisively defeated at the Battle of Thermopylae (191 BC) and the Battle of Magnesia (190 BC) by Roman forces under Scipio Asiaticus, ending Seleucid ambitions in Europe and Asia Minor.

Antiochus III signed the Treaty of Apamea with Rome, ending the war. He surrendered all territory in Asia Minor west of the Taurus Mountains, paid a massive indemnity of 15,000 talents, and agreed to limit his navy and war elephants, crippling Seleucid power.

Antiochus III was killed while attempting to plunder the temple of Bel in Elymais (southwestern Iran) to raise funds for the Roman indemnity. His death marked the end of Seleucid resurgence and the beginning of the empire's decline.

Kanishka introduced a new calendar era, known as the Kanishka Era (starting 127 CE), used in inscriptions and coins across the Kushan Empire. This era facilitated trade and administration and is still referenced in historical studies.

Kanishka sponsored the Fourth Buddhist Council in Kashmir, which compiled the Sarvastivada canon and produced the Mahavibhasha commentary. This council standardized Buddhist doctrine and promoted the spread of Mahayana Buddhism across Central Asia and China.

Kanishka led military campaigns into Central Asia, conquering territories in modern Uzbekistan, Tajikistan, and Afghanistan. He also extended Kushan control into the Tarim Basin (Xinjiang), controlling the Silk Road trade routes.

Kanishka commissioned the construction of Buddhist stupas, monasteries, and the famous Kanishka Stupa at Peshawar. His patronage fostered the Gandhara school of art, blending Greek, Persian, and Indian styles, which influenced Buddhist iconography across Asia.