Andorra
For 715 years, from 1278 to 1993, Andorrans lived under a
unique co-principality, ruled by French and Spanish leaders (from
1607 onward, the French chief of state and the Spanish bishop of
Urgel). In 1993, this feudal system was modified with the titular
heads of state retained, but the government transformed into a
parliamentary democracy. Long isolated and impoverished, mountainous
Andorra achieved considerable prosperity since World War II through
its tourist industry. Many immigrants (legal and illegal) are
attracted to the thriving economy with its lack of income taxes.

Angola
Angola is slowly rebuilding its country after the end of a
27-year civil war in 2002. Fighting between the Popular Movement for
the Liberation of Angola (MPLA), led by Jose Eduardo DOS SANTOS, and
the National Union for the Total Independence of Angola (UNITA), led
by Jonas SAVIMBI, followed independence from Portugal in 1975. Peace
seemed imminent in 1992 when Angola held national elections, but
UNITA renewed fighting after being beaten by the MPLA at the polls.
Up to 1.5 million lives may have been lost - and 4 million people
displaced - in the quarter century of fighting. SAVIMBI's death in
2002 ended UNITA's insurgency and strengthened the MPLA's hold on
power. DOS SANTOS has pledged to hold legislative elections in 2007,
but 2008 may be more realistic.

Anguilla
Colonized by English settlers from Saint Kitts in 1650,
Anguilla was administered by Great Britain until the early 19th
century, when the island - against the wishes of the inhabitants -
was incorporated into a single British dependency, along with Saint
Kitts and Nevis. Several attempts at separation failed. In 1971, two
years after a revolt, Anguilla was finally allowed to secede; this
arrangement was formally recognized in 1980, with Anguilla becoming
a separate British dependency.

Antarctica
Speculation over the existence of a "southern land" was
not confirmed until the early 1820s when British and American
commercial operators and British and Russian national expeditions
began exploring the Antarctic Peninsula region and other areas south
of the Antarctic Circle. Not until 1840 was it established that
Antarctica was indeed a continent and not just a group of islands.
Several exploration "firsts" were achieved in the early 20th
century. Following World War II, there was an upsurge in scientific
research on the continent. A number of countries have set up
year-round research stations on Antarctica. Seven have made
territorial claims, but not all countries recognize these claims. In
order to form a legal framework for the activities of nations on the
continent, an Antarctic Treaty was negotiated that neither denies
nor gives recognition to existing territorial claims; signed in
1959, it entered into force in 1961.

Antigua and Barbuda
The Siboney were the first to inhabit the
islands of Antigua and Barbuda in 2400 B.C., but Arawak Indians
populated the islands when Columbus landed on his second voyage in
1493. Early settlements by the Spanish and French were succeeded by
the English who formed a colony in 1667. Slavery, established to run
the sugar plantations on Antigua, was abolished in 1834. The islands
became an independent state within the British Commonwealth of
Nations in 1981.

Arctic Ocean
The Arctic Ocean is the smallest of the world's five
oceans (after the Pacific Ocean, Atlantic Ocean, Indian Ocean, and
the recently delimited Southern Ocean). The Northwest Passage (US
and Canada) and Northern Sea Route (Norway and Russia) are two
important seasonal waterways. A sparse network of air, ocean, river,
and land routes circumscribes the Arctic Ocean.

Argentina
In 1816, the United Provinces of the Rio Plata declared
their independence from Spain. Eventually, Bolivia, Paraguay, and
Uruguay went their own way, but the area that remained became
Argentina. The country's population and culture were subsequently
heavily shaped by immigrants from throughout Europe, but most
particularly Italy and Spain, which provided the largest percentage
of newcomers from 1860 to 1930. Up until about the mid-20th century,
much of Argentina's history was dominated by periods of internal
political conflict between Federalists and Unitarians and between
civilian and military factions. After World War II, an era of
Peronist authoritarian rule and interference in subsequent
governments was followed by a military junta that took power in
1976. Democracy returned in 1983, and has persisted despite numerous
challenges, the most formidable of which was a severe economic
crisis in 2001-02 that led to violent public protests and the
resignation of several interim presidents. The economy has since
recovered strongly since bottoming out in 2002. The government
renegotiated its public debt in 2005 and paid off its remaining
obligations to the IMF in early 2006.

Armenia
Armenia prides itself on being the first nation to formally
adopt Christianity (early 4th century). Despite periods of autonomy,
over the centuries Armenia came under the sway of various empires
including the Roman, Byzantine, Arab, Persian, and Ottoman. During
World War I in the western portion of Armenia, Ottoman Turkey
instituted a policy of forced resettlement coupled with other harsh
practices that resulted in an estimated 1 million Armenian deaths.
The eastern area of Armenia was ceded by the Ottomans to Russia in
1828; this portion declared its independence in 1918, but was
conquered by the Soviet Red Army in 1920. Armenian leaders remain
preoccupied by the long conflict with Muslim Azerbaijan over
Nagorno-Karabakh, a primarily Armenian-populated region, assigned to
Soviet Azerbaijan in the 1920s by Moscow. Armenia and Azerbaijan
began fighting over the area in 1988; the struggle escalated after
both countries attained independence from the Soviet Union in 1991.
By May 1994, when a cease-fire took hold, Armenian forces held not
only Nagorno-Karabakh but also a significant portion of Azerbaijan
proper. The economies of both sides have been hurt by their
inability to make substantial progress toward a peaceful resolution.
Turkey imposed an economic blockade on Armenia and closed the common
border because of the Armenian occupation of Nagorno-Karabakh and
surrounding areas.

Aruba
Discovered and claimed for Spain in 1499, Aruba was acquired
by the Dutch in 1636. The island's economy has been dominated by
three main industries. A 19th century gold rush was followed by
prosperity brought on by the opening in 1924 of an oil refinery. The
last decades of the 20th century saw a boom in the tourism industry.
Aruba seceded from the Netherlands Antilles in 1986 and became a
separate, autonomous member of the Kingdom of the Netherlands.
Movement toward full independence was halted at Aruba's request in
1990.

Ashmore and Cartier Islands
These uninhabited islands came under
Australian authority in 1931; formal administration began two years
later. Ashmore Reef supports a rich and diverse avian and marine
habitat; in 1983, it became a National Nature Reserve. Cartier
Island, a former bombing range, is now a marine reserve.