Rome conquered the Celts between 224 and 220 bc, extending its northeastern frontier to the Julian Alps.
Along Chile's northeastern frontier with Argentina and Bolivia extends the Atacama Plateau, which reaches elevations of 13,000 feet (4,000 metres).
An Lushan's military career took place on Tang China's northeastern frontier in what is now Liaoning province.
As "émigrés," many formed armed groups close to the northeastern frontier of France and sought help from the rulers of Europe.
More than 2,000 years ago, a site north of present-day Beijing was already an important military and trading centre for the northeastern frontier of China.
After his death, An Lushan became the object of a cult on the northeastern frontier among the non-Chinese soldiers who constituted the bulk of the army and whose aspirations he symbolized.
The events in Salem were precipitated by a conflict with the Indians on the northeastern frontier, the most significant surge of violence in the region in nearly 40 years.
Uni, another Upper Egyptian and a close confidant of the king, recruited troops from Nubia as well as from Egypt in preparation for raids against rebellious Bedouins of the northeastern frontier.
Instead of the slogan, "The Movie Event You'll Never Forget," the Spanish-language ads referred to "The Battle That Divided Mexico," reflecting the view of historians who consider the Alamo an episode in a civil war in what was once Mexico's northeastern frontier.
Thus, there was a revolt among the mountaineers of Pkhovi and Dido on Georgia's northeastern frontier in 1212, which was put down by Ivane Mkhargrdzeli after three months of heavy fighting.
