The rebellion of Greece begins in 1821 which ultimately leads to its independence
Belgium becomes independent in 1830 after a massive uprising against the Dutch. Leopold becomes the first king of Belgium. Belgium will be the second industrial power in the world by the middle of the 19th century.
Leopold II, son of Leopold, becomes the second king of Belgium. He buys the gigantic territory of Congo in Africa with his own fortune and will later (1908) offer it to Belgium.
The fall of the Ottoman Empire continues with numerous rebellions and wars with liberated countries in the Balkans, as well as four more Russo-Turkish Wars. The Great Powers get involved in the Crimean War (1854-1856) where the United Kingdom and France aid the Ottomans against the Russians, as well as in the Congress of Berlin that produces the Treaty of Berlin, 1878.
Gold is discovered in several places in Australia and New Zealand and throughout the west of the United States, leading to huge increases in national wealth and encouraging mass migration of free settlers there.
The quick defeat of Spain by the United States in 1898, in the Spanish-American War, removes Spain from the list of major world powers for good and gives rise to the United States as a major world military power.
The electric telegraph and undersea cables make instant global communication possible for the first time.
Postage Stamps and diamond-shaped paper sheets which folded to form envelopes for carrying letters devised and introduced in Britain, and soon thereafter in many other countries, leading to establishment of the Universal Postal Union.
The Taiping Rebellion, from 1851 to 1864, a conflict between Imperial China and the followers of a Hakka self-proclaimed mystic and Christian convert Hong Xiugan, took the lives of about 20 million people.
Manufactured goods become widely available by mail order
In this century İzmir was to witness great and fundamental changes regarding issues such as the functioning of commerce, transportation, public works, industry, agriculture, mining, population and city development.
On the other hand, free trading at the beginning of the XIXth century by European merchants was limited by the monopoly restrictions of the Ottoman State under the "yed-i vahid" principles.
In previous centuries the population estimations regarding İzmir were given by foreign travellers.
The 19th century continued and expanded the industrial revolution which had its roots in the preceding century.
It was a century of widespread invention and discovery, and one in which social, cultural, and economic systems were heavily affected by science and technology and the business models built on them, such as a shift from independent artisans and craftspersons to wage laborers employed by large factories as the primary means of production.
It was the heyday of capitalism, but it was also the century in which the major opposing ideologies, socialism and communism, arose.