Geography of Madagascar in the context of "Madagascar"

Gondwana (/ɡɒnˈdwɑːnə/ gond-WAHN-ə; Sanskrit: [goːɳɖɐʋɐnɐ]) was a large landmass, sometimes referred to as a supercontinent. The remnants of Gondwana make up around two-thirds of today's continental area, including South America, Africa, Antarctica, Australia, Zealandia, Arabia, and the Indian subcontinent.

Gondwana was formed by the accretion of several cratons (large stable blocks of the Earth's crust), beginning c. 800 to 650 Ma with the East African Orogeny, the collision of India and Madagascar with East Africa, and culminating in c. 600 to 530 Ma with the overlapping Brasiliano and Kuunga orogenies, the collision of South America with Africa, and the addition of Australia and Antarctica, respectively. Eventually, Gondwana became the largest piece of continental crust of the Paleozoic Era, covering an area of some 100,000,000 km (39,000,000 sq mi), about one-fifth of the Earth's surface. It fused with Laurasia during the Carboniferous to form Pangaea.

The Somali plate is a minor tectonic plate which straddles the Equator in the Eastern Hemisphere. It is currently in the process of separating from the African plate along the East African Rift Valley and moving to the Indian subcontinent. It is approximately centered on the island of Madagascar and includes about half of the east coast of Africa, from the Gulf of Aden in the north through the East African Rift Valley. The southern boundary with the Nubian–African plate is a diffuse plate boundary consisting of the Lwandle plate.

Andrianampoinimerina (Malagasy pronunciation: [anˈɖʐianˌmpuʲnˈmerʲnə̥]) (c. 1745–1810) ruled the Kingdom of Imerina on Madagascar from 1787 until his death. His reign was marked by the reunification of Imerina following 77 years of civil war, and the subsequent expansion of his kingdom into neighboring territories, thereby initiating the unification of Madagascar under Merina rule. Andrianampoinimerina is a cultural hero and holds near mythic status among the Merina people, and is considered one of the greatest military and political leaders in the history of Madagascar.

Andrianampoinimerina (whose name means "the king in the heart of Imerina") took power upon deposing his uncle, King Andrianjafy, who had ruled over Imerina Avaradrano (Northern Imerina). Prior to Andrianampoinimerina's reign, Imerina Avaradrano had been locked in conflict with the three other neighboring provinces of the former kingdom of Imerina that had last been unified under King Andriamasinavalona a century before. Andrianampoinimerina established his capital at the fortified town of Ambohimanga, a site of great spiritual, cultural and political significance that was designated a UNESCO World Heritage Site in 2001. The king's original royal lodgings can still be visited at Ambohimanga today. From this position, he progressively extended his domain first over all Imerina and then over the greater Highlands, absorbing the Betsileo, Sihanaka, Bezanozano and Bara territories. Having reigned for 23 years at the time of his death, Andrianampoinimerina had successfully reunited Imerina and vastly expanded the Merina kingdom, with the intent to ultimately unify all of Madagascar under Merina rule. His son and heir, Radama I, continued the conquests Andrianampoinimerina had begun, and over the next two decades largely achieved his father's vision.

The Madagascar Plan (German: Madagaskarplan) was a plan proposed by the Nazi German government to forcibly relocate the Jewish population of Europe to the island of Madagascar. Franz Rademacher, head of the Jewish Department of the German Foreign Office, proposed the idea in June 1940, shortly before the Fall of France. The proposal called for the handing over of control of Madagascar, then a French colony, to Germany as part of the eventual peace terms.

The idea of re-settling Polish Jews to Madagascar was investigated by the French Third Republic and the Second Polish Republic in 1937, but the task force sent to evaluate the island's potential determined that only 5,000 to 7,000 families could be accommodated, or even as few as 500 families by some estimates. As the efforts by the Nazis to encourage the emigration of the Jewish population of Germany before World War II were only partially successful, the idea of deporting Jews to Madagascar was revived by the Nazi government in 1940.

The First Madagascar expedition was the beginning of the Franco-Hova War and consisted of a French military expedition against the Merina Kingdom on the island of Madagascar in 1883. It was followed by the Second Madagascar expedition in 1895.

The Second Madagascar expedition was a French military intervention which took place in 1894–1895, sealing the conquest of the Merina Kingdom on the island of Madagascar by France. It was the last phase of the Franco-Hova War and followed the First Madagascar expedition of 1883–1885.