Brazil's
history began in the late 15th century. Based upon the
Treaty of Tordesillas
and the
letter
of Pero Vaz de Caminha, Brazil was
officially
discovered
at
Mount Pascoal
by Pedro Álvares Cabral, on April 22, 1500.
After the extinction of the
Indians
during the 16th century and in order to feed the labour demand, about 4 million
African slaves were "imported" to Brazil until the end of the 19th century and,
after the abolishment of slavery, about 5 million European, Asian and Arab
immigrants, until the end of the 20th century.
Geologically, Brazil occupies 75% of the
South American Platform
which is composed of
Phanerozoic sedimentary basins
and
Precambrian shields.
The
Atlantic Shield in eastern Brazil
is formed by the
São Francisco Craton
and three geotectonic provinces. One of them, the
Mantiqueira Province,
is composed of three orogenic fold belts
(
Ribeira,
Araçuaí and Dom Feliciano).
Geomporphologically and
topographically, the country is predominatly flat,
with the exception of a mountainous coast in South and Southeast Brazil.
With summits, between 1.500 and 3.000 m, the subparallel mountain chains
Mar /
Mantiqueira,
which are connected by the
Southeast Rift, represent the highest elevations in
East America.
Ecologically, Brazil is divided into 6
biomes, containing 6
Biosphere Reserves,
17
World Heritage Sites and
more than 900
Conservation Units.
It is the first among the
megadiverse countries.
The biome of the
Atlantic
Rainforest /
(
Mata Atlântica)
contains the second largest biosphere reserve in the world, 4 of the 7
Brazilian Natural World Heritage Sites and approximately 600 of the 900
conservation units.
It is listed among the top 5
hotspots
regarding
flora and
fauna
diversity.
Climatically, Brazil is divided into a
northern
tropical and southern
subtropical
climate zone,
separated by the
Tropic of Capricorn at 23,5° south latitude (São Paulo).
The
climate of the Atlantic Rainforest
is defined by a warm wet and a cool dry
season from November to March (summer) and from May to August (winter).
For further information, see
climate diagrams.