1601–1900 1783 – In Calabria, a sequence of strong earthquakes begins. 1810 – Peninsular War: Siege of Cádiz begins. 1818 – Jean-Baptiste Bernadotte ascends to the thrones of Sweden and Norway. 1852 – The New Hermitage Museum in Saint Petersburg, Russia, one of the largest and oldest museums in the world, opens to the public. 1859 – Alexandru Ioan Cuza, Prince of Moldavia, is also elected as prince of Wallachia, joining the two principalities as a personal union called the United Principalities, an autonomous region within the Ottoman Empire, which ushered in the birth of the modern Romanian state. 1869 – The largest alluvial gold nugget in history, called the "Welcome Stranger", is found in Moliagul, Victoria, Australia. 1885 – King Leopold II of Belgium establishes the Congo as a personal possession.
1601–1900 1783 – In Calabria, a sequence of strong earthquakes begins. 1810 – Peninsular War: Siege of Cádiz begins. 1818 – Jean-Baptiste Bernadotte ascends to the thrones of Sweden and Norway. 1852 – The New Hermitage Museum in Saint Petersburg, Russia, one of the largest and oldest museums in the world, opens to the public. 1859 – Alexandru Ioan Cuza, Prince of Moldavia, is also elected as prince of Wallachia, joining the two principalities as a personal union called the United Principalities, an autonomous region within the Ottoman Empire, which ushered in the birth of the modern Romanian state. 1869 – The largest alluvial gold nugget in history called the "Welcome Stranger", is found in Moliagul, Victoria, Australia. 1885 – King Leopold II of Belgium establishes the Congo as a personal possession.