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222-220 BC. Hydraulis-Antiochus III-Diodotian/China
222-220 BC

Diogenes of Thessaly, a student of Ctesibius in Alexandria museum, introduce in Massalia the hydraulis, a water organ that is considered the precursor of the modern pipe organ, and an improved water clock or clepsydra.
  • Two new major roads are build to connect Massalia with the new territories.
By place

Rome

Hannibal Bacra came real close with consul Publius Cornelius Scipio and his family, especially the young Scipio(Africanus in OTL). Hannibal introduced to the Consul and the Romans the stirrup/war saddle tech and some new cavalry tactics.
Seleucid Empire

Antiochus III inherited a disorganized state. Not only had Asia Minor become detached by Pergamon, but the easternmost provinces had broken away, Bactria and Parthia under the Greek Diodotus of Bactria. Antiochus proved to be a worthy and visionary statesman. He reorganise his nomes and put’s trusted friends as governors. He marries Laodice(daughter of Mithridates II, king of Pontus/vassal of Seleucids). Another of Mithridates daughters, also named Laodice, is married to Achaeus, a cousin of Antiochus. Antiochus III gives his sister Antiochia in marriage to King Xerxes of his semi vassal Armenia who acknowledges Antiochus III's suzerainty and pays him tribute. Antiochus III sister arranges for the assassination of Armenia’s king Xerxes, whom she has recently married. Antiochus III then divides the Armenia into two nomes/satrapies. The submission of Lesser Media/ Atropatene(vassal of Seleucids), which had asserted its independence under Artabazanes, followed. To copy with the Ptolemaic Empire artillery he builds a Museum/university in Seleucia and invites more than one hundred scholars/engineers/Mathematicians. He also invites more than twenty thousands new Greek cleruchs to join the ranks of the army and settles them in Armenia and Atropatene.

Ptolemaic Empire

The realisation of their military importance during the expedition/war in Red sea leads to demands by native Egyptians for greater privileges .A revolt of native Egyptians is put down by Ptolemy III in 221 BC. Fearing of more rebellions, Ptolemy III grants semi cleruchs rights to thirty thousands native Egyptians thus settling them to South Red sea.

Diodotian Empire/Greco-Bactrian.

From Alexandria Eschate the Greco-Bactrians led several trade expeditions as far East Xinjiang, leading to the first known contacts between China and the West around 220 BC. Several statuettes and representations of Greek soldiers have been found north of the Tien Shan, on the doorstep to China, and are today on display in the Xinjiang museum at Urumqi. Greek influences on Chinese art have also been suggested. Designs with rosette flowers, geometric lines, and glass inlays, suggestive of Hellenistic influences, can be found on some early Han dynasty bronze mirrors. Greco-Bactrians also received Buddhist emissaries and some of them converted to Buddhism while the rest somehow tolerated the Buddhist faith,

Carthage
  • In a two years war(221-220 BC)Carthage conquered the state of Zama with the help of the young Numibian King Masinissa.

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