Iceland

Around the middle of the 16th century, as part of the Protestant Reformation, King Christian III of Denmark began to impose Lutheranism on all his subjects. Jón Arason, the last Catholic bishop of Hólar, was beheaded in 1550 along with two of his sons. The country subsequently became officially Lutheran and Lutheranism has since remained the dominant religion.
In the 17th and 18th centuries, Denmark imposed harsh trade restrictions on Iceland. Natural disasters, including volcanic eruption and disease, contributed to a decreasing population. Pirates from several countries, including the Barbary Coast, raided its coastal settlements and abducted people into slavery. A great smallpox epidemic in the 18th century killed around a third of the population. In 1783 the Laki volcano erupted, with devastating effects. In the years following the eruption, known as the Mist Hardships (Icelandic: Móðuharðindin), over half of all livestock died in the country. Around a quarter of the population died in the ensuing famine.
• Independence movement 1814–1918
In 1814, following the Napoleonic Wars, Denmark-Norway was broken up into two separate kingdoms via the Treaty of Kiel but Iceland remained a Danish dependency. Throughout the 19th century, the country's climate continued to grow colder, resulting in mass emigration to the New World, particularly to the region of Gimli, Manitoba in Canada, which was sometimes referred to as New Iceland. About 15,000 people emigrated, out of a total population of 70,000.