European exploration of Africa
One of the ships under command of Diogo Dias arrived at a coast that was not in East Africa. Two years later, a chart already showed an elongated island east of Africa that bore the name Madagascar. But only a century later, between 1613 and 1619, did the Portuguese explore the island in detail. They signed treaties with local chieftains and sent the first missionaries, who found it impossible to make locals believe in Hell, and were eventually expelled.
First Madagascar expedition
Following their capture of Mauritius from the French in 1810 during the Napoleonic Wars, with ownership confirmed by the 1814 Treaty of Paris, the British saw Madagascar as a natural expansion of their influence in the Indian Ocean. The Merina King, Radama I, managed to unite Madagascar under one rule, benefiting from British weapons and military instructors. He signed treaties with the British, allowing Protestant missionaries and outlawing the slave trade.