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Detail of the Catalan Atlas depicting Marco Polo travelling to the East during the Pax Mongolica. The Pax Mongolica (Latin for "Mongol Peace"), less often known as Pax Tatarica [1] ("Tatar Peace"), is a historiographical term modeled after the original phrase Pax Romana which describes the stabilizing effects of the conquests of the Mongol Empire on the social, cultural and economic life of ...
The word "pax" together with the Latin name of an empire or nation is used to refer to a period of peace or at least stability, enforced by a hegemon, a so-called Pax imperia ("Imperial peace"). The following is a list of periods of regional peace, sorted by alphabetical order.
The wave envelope is the profile of the wave amplitudes; all transverse displacements are bound by the envelope profile. Intuitively the wave envelope is the "global profile" of the wave, which "contains" changing "local profiles inside the global profile".
The Mongol armies arrived in Khwarazmia in waves: first, a vanguard led by Genghis' eldest son Jochi and the general Jebe crossed the Tien Shan passes, and started laying waste to the towns of the eastern Fergana Valley. Jochi's brothers Chagatai and Ogedai then descended on Otrar and besieged it. [18]
Male-mediated Western Steppe Herders ancestry increased by the establishment of Türkic and Uyghur rule in Mongolia, which was accompanied by an increase in the West Eurasian haplogroups R and J. [27] There was a male-mediated rise in East Asian ancestry in the late medieval Mongolian period, paralleling the increase of haplogroup C2b.
Mongol rider on the Yam (Postal) System. Diez Albums, SBB-PK, Diez A fol. 71, p. 28, no. 1. [1]Yam (Mongolian: Өртөө, romanized: Örtöö, lit. 'checkpoint') was a postal system or supply point route messenger system extensively used and expanded by Ögedei Khan and also used by subsequent great khans and khans.
The Mongols had threatened Europe, but Mongol states also unified much of Eurasia and, from 1206 on, the Pax Mongolica allowed safe trade routes and communication lines from the Middle East to China. [44] [45] The close Italian links to the Levant raised curiosity and commercial interest in countries which lay further east.
While periodic travelling waves have been known as solutions of the wave equation since the 18th century, their study in nonlinear systems began in the 1970s. A key early research paper was that of Nancy Kopell and Lou Howard [1] which proved several fundamental results on periodic travelling waves in reaction–diffusion equations.