North America represents a very diverse area, which offers a lot of wonderful places
to any tourist. You can admire here beautiful nature, a lot of animals, interesting
people, their culture and history as well. North America has indeed a lot to be
proud of. It is very hard to choose only a few of highlights, but we will try to.
Upon the arrival of the Europeans in the "New World", Native American population
declined substantially, primarily due to the introduction of European diseases to
which the Native Americans lacked immunity.[11] Native peoples found their culture
changed drastically. As such, their affiliation with political and cultural groups
changed as well, several linguistic groups went extinct, and others changed quite
quickly. The names and cultures that Europeans recorded for the natives were not
necessarily the same as the ones they had used a few generations before, or the
ones in use today.
The term steamboat is usually used to refer to smaller steam-powered boats working
on lakes and rivers, particularly riverboats; steamship generally refers to larger
steam-powered ships, usually ocean-going, capable of carrying a (ship's) boat. The
term steamwheeler is archaic and rarely used.
Engines to produce steam were developed and adapted in the late 18th century for
use on ships, but did not become widely used until the early 19th century. Growth
in their use was rapid on United States rivers, and steamships gradually replaced
sailing ships for commercial shipping through the 19th century[1] and in turn were
overtaken by diesel-driven ships in the second half of the 20th century. Most warships
used steam propulsion until the advent of the gas turbine. Today, nuclear-powered
warships and submarines, although powered by steam-driven turbines, are not usually
referred to as steamships
|
|
|
|