page_title: List of ancient great powers
section_title: Seleucid Empire
hierarchical_section_title: List of ancient great powers / Ancient Europe / Seleucid Empire
caption_attribution_description: English: States of the Diadochi, c. 300 BC Español: Imperio tolemaico (azul) Nederlands: De diadochenrijken in 300 v.Chr. Македонски: Дијадошки држави, околу 300 гпне
context_page_description: Recognized great powers came about first in Europe during the post-Napoleonic era. The formalization of the division between small powers and great powers came about with the signing of the Treaty of Chaumont in 1814. A great power is a nation or state that, through its great economic, political and military strength, is able to exert power and influence over not only its own region of the world, but beyond to others.
  The historical terms "Great Nation", a distinguished aggregate of people inhabiting a particular country or territory, and "Great Empire", a considerable group of states or countries under a single supreme authority, are colloquial conversations.
  3000 BC – 476 AD
context_section_description: The Seleucid Empire was a Hellenistic empire, and the eastern remnant of the former Achaemenid Persian Empire following its breakup after Alexander the Great's invasion. The Seleucid Empire was centered in the near East. It was a center of Hellenistic culture which maintained the Greek customs and Greek-speaking Macedonian elite.
  
  Seleucid expansion into Greece was abruptly halted after decisive defeats at the hands of the Roman army. Much of the eastern part of the empire was conquered by the Parthians under Mithridates I of Parthia in the mid-2nd century BC, yet the Seleucid kings continued to rule a rump state from Syria until the invasion by Armenian king Tigranes the Great and their ultimate overthrow by the Roman general Pompey.
caption: Seleucid Empire amongst other Hellenistic kingdoms.
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