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Cherokee 108 2112; Scheller College of Business, Georgia 236.svg State Route 236, Flowery Branch pop 5,679 Improved economic conditions and easing of religious persecution in Europe made it more difficult to recruit labor to the colonies and many colonies became increasingly reliant on slave labor particularly in the South the population of slaves in British North America grew dramatically between 1680 and 1750 and the growth was driven by a mixture of forced immigration and the reproduction of slaves Slaves supported vast plantation economies in the South while slaves in the North worked in a variety of occupations There were some slave revolts such as the Stono Rebellion and the New York Conspiracy of 1741 but these uprisings were suppressed. 113 2821 Wagonways (or tramways) using wooden rails hauled by horses started appearing in the 1550s to facilitate the transport of ore tubs to and from mines and soon became popular in Europe Such an operation was illustrated in Germany in 1556 by Georgius Agricola in his work De re metallica This line used "Hund" carts with unflanged wheels running on wooden planks and a vertical pin on the truck fitting into the gap between the planks to keep it going the right way the miners called the wagons Hunde ("dogs") from the noise they made on the tracks.

Media Chad (4) France: TF1 FTV Eurosport Committees. Track consists of two parallel steel rails anchored perpendicular to members called ties (sleepers) of timber concrete steel or plastic to maintain a consistent distance apart or rail gauge Rail gauges are usually categorized as standard gauge (used on approximately 55% of the world's existing railway lines) broad gauge and narrow gauge.[citation needed] in addition to the rail gauge the tracks will be laid to conform with a Loading gauge which defines the maximum height and width for railway vehicles and their loads to ensure safe passage through bridges tunnels and other structures!