In the first years of the 1st century, Roman legions conducted a long campaign in Germania, the area north of the Upper Danube and east of the Rhine, in an attempt to expand the Empire's frontiers and shorten its frontier line.

By AD 100, the time of Tacitus's Germania, Germanic tribes settled along the Roman frontier at the Rhine and the Danube ( the Limes Germanicus ), occupying most of the area of modern Germany ; however, Austria, southern Bavaria, and the western Rhineland were Roman provinces.

From 1260 to 1291 the area became the frontier between Mongol invaders ( occasional Crusader allies ) and the Mamluks of Egypt.

In the book The Wild Frontier: Atrocities during the American-Indian War from Jamestown Colony to Wounded Knee, amateur historian William M. Osborn sought to tally every recorded atrocity in the area that would eventually become the continental United States, from first contact ( 1511 ) to the closing of the frontier ( 1890 ), and determined that 7, 193 people died from atrocities perpetrated by whites, and 9, 156 people died from atrocities perpetrated by Native Americans.

Much of eastern Mongolia is occupied by a plain, and the lowest area is a southwest-to-northeast trending depression that reaches from the Gobi Desert region in the south to the eastern frontier.

Stalin was waiting to see whether the Germans would halt within the agreed area, and also the Soviet Union needed to secure the frontier in the Far East.

* The Roman occupation of Britain reaches the River Tyne – Solway Firth frontier area.

Visucius was worshiped primarily in the frontier area of the empire in Gaul and Germany.

Their region lay on the periphery of the Greek world and was far from peaceful ; for many centuries, it remained a frontier area contested with the Illyrian peoples to the north.

French forces in the Ohio valley also continued to intrigue with Indians throughout the area, encouraging them to raid frontier settlements.

Yuan Shao occupied the northern area of Ye and extended his power, by taking over his superior Han Fu with trickery and intimidation, north of the Yellow River against Gongsun Zan, who held the northern frontier.

The word " frontier " also means a region at the edge of a settled area, especially in North American development.

In 1799, Boone moved to a frontier area then part of Spanish Louisiana.

Named after George Washington, first President of the United States of America, the area was first settled by those seeking both economic and political freedoms in this frontier land of vast timber and mineral resources.

They founded an agricultural community and sought to create an agricultural revolution in what had been a frontier area, in the best traditions of innovation in the New South.

In 2003, with increased private and UN investment in the area, the two countries agreed to establish an integrated frontier zone which treats air travel between border cities as domestic travel and simplifies customs and tariff procedures.

In 1766 – 67 the Marqués de Rubí included the area in his inspection of the Spanish frontier, and the 1798 explorations of the coast by Francisco Vázquez de Coronado skirted the area.

Beginning in the mid-eighteenth century, many migrants from Virginia entered the frontier area.

With a population of only 3, 400 people, the county is as sparsely populated as many an old West frontier area.

Two small battles occurred in what would become the County during the Revolutionary War between Patriot Militia and Tories ; the area was then primarily frontier and loyalties were badly divided.

Just before and immediately after the Revolution, numerous Virginians and North Carolinians migrated to the frontier of Georgia above Augusta, including the area around Brownsborough.

Fort Ellsworth was the first frontier fort established in the Kanopolis area.

The Autrey house ( and museum ) just west of town is the oldest home in the area and is an excellent example of the early and rare form of frontier architecture.

The area was part of the Louisiana frontier and pine forests, but early houses survive from the mid-nineteenth century: among the oldest homes are the R. T. Moore / Gresham / Stenzel House, known as the " Sweet Onion ", and McCuller Log Cabin, both circa 1865.

As the frontier moved north, Deerfield became another colonial town with an unquiet early history.

In 1776, American colonists Gilbert Martin ( Henry Fonda ) and Lana Borst ( Claudette Colbert ) marry and leave her luxurious home in Albany, New York for a small farm in Deerfield on the western frontier of the Mohawk Valley in central New York.

For much of the colonial period, Deerfield was one of New England's frontier villages.

Deerfield survived the raid, and the frontier continued to be pushed north and west.

and he wrote also the masterpiece of frontier humor, `` The Big Bear Of Arkansas '', in which earthy realism is placed alongside the exaggeration of the backwoods tall-tale and the awe with which man contemplates the grandeur and the mysteries of nature.

`` Ah, then please tell me where the frontier is because this gentleman here '' -- I indicated the French occupation officer -- `` informs me that Germany is just on the other side of him ''.

Another spot with an image-provoking name is the Black Hills where you can visit the old frontier mining town of Deadwood.

The term is related to the notion of Ribat, a frontier monastery-fortress, through the root r-b-t ( " Rabat ": to tie or " Raabat ": to encamp ).

Cylipenus, probably the Bay of Kiel, is described, and from there a gulf called Lagnus, which is on the frontier of the Cimbri.

Boer (,, or ; ) is the Dutch and Afrikaans word for farmer, which came to denote the descendants of the Dutch-speaking settlers of the eastern Cape frontier in Southern Africa during the 18th century, as well as those who left the Cape Colony during the 19th century to settle in the Orange Free State, Transvaal ( which are together known as the Boer Republics ), and to a lesser extent Natal.

The coast is a frontier that nations have typically defended against military invaders, smugglers and illegal migrants.

The most obvious reference is in the title of the show, ‘ cowboy ’, immediately suggesting a lawless frontier society.

The phrase appears five times in the Bible and is a reference to the college's location on what was once the frontier of European settlement.

The most that can be said about built structures under Diocletian's reign is that he rebuilt and strengthened forts at the Upper Rhine frontier ( where he followed the works made under Probus's reign, both along the Lake Constance-Basel as well as along the Rhine – Iller – Danube line ), in Egypt, and on the frontier with Persia.

The Strata Diocletiana, which ran from the Euphrates to Palmyra and northeast Arabia, is the classic Diocletianic frontier system, consisting of an outer road followed by tightly spaced forts followed by further fortifications in the rear.

Both these views had some truth to them, despite the biases of their authors: Diocletian and the Tetrarchs did greatly expand the army, and the growth was mostly in frontier regions, although it is difficult to establish the precise details of these shifts given the weakness of the sources.

An example PPF with illustrative points marked The production-possibility frontier ( PPF ) is an expository figure for representing scarcity, cost, and efficiency.

Although not very much is known about Allen's childhood, the town of Cornwall was frontier territory in the 1740s.

In 771, Charlemagne reunited the Frankish domains after a further period of division, subsequently conquering the Lombards under Desiderius in what is now northern Italy ( 774 ), incorporating Bavaria ( 788 ) into his realm, defeating the Avars of the Danubian plain ( 796 ), advancing the frontier with Islamic Spain as far south as Barcelona ( 801 ), and subjugating Lower Saxony after a prolonged campaign ( 804 ).

Like Hecate, " he dog is a creature of the threshold, the guardian of doors and portals, and so it is appropriately associated with the frontier between life and death, and with demons and ghosts which move across the frontier.

Some historians argue that this new approach is an expression of the American spirit and the boundless open space of the frontier, which German culture so admired.

In the Ringworld era it is still a frontier world, and is home to enormous birds the inhabitants have dubbed " rocs ".