Please click here to leave a new message.

Beliefs ✝ This user is a Christian. This user loves God more than anyone and anything! This user is a Bible reader.

This user is European.

en-3 This user can contribute with an advanced level of English.

Hi! I am the user Olahus. I am interested in the history and geography of Central, Eastern and Southeastern Europe.

I am a registered user since May 2006.

Picture of the day

Sphalerite is a sulfide mineral with the chemical formula (Zn,Fe)S. It is found in a variety of deposit types, and is found in association with galena, chalcopyrite, pyrite (and other sulfides), calcite, dolomite, quartz, rhodochrosite, and fluorite. Sphalerite is an important ore of zinc, with around 95 percent of all primary zinc extracted from its ore. Due to its variable trace-element content, sphalerite is also an important source of several other metals such as cadmium, gallium, germanium and indium. The zinc in sphalerite is also used to produce brass. This sample was extracted in Creede, Colorado, and features black tetrahedral crystals of sphalerite up to 8 mm (0.31 in) in size, with minor chalcopyrite and calcite, in a 4.5 cm × 3.0 cm × 2.0 cm (1.77 in × 1.18 in × 0.79 in) matrix. This photograph was focus-stacked from 125 separate images.Photograph credit: Ivar Leidus

Archive – More featured pictures...

Images uploaded by me

Maps created by me

Scanned images

• 
  Ethnic map of the Balkan Peninsula (1898)
• 
  The Austrian Empire during the XVII century
• 
  The Carolingian Empire after the Treaty of Verdun
• 
  Ethnic map of European Russia before the First World War
• 
  Ethnographic map of Dobruja (1918)
• 
  The Principality of Montenegro in 1862
• 
  Major Lithuanian linguistic areal in 1876.
• 
  Ethnic Germans in Hungary and parts of adjacent Austrian territories, census 1890
• 
  Demographic map of Italy and surroundung regions (1859)
• 
  Linguistic map of Slovenia and surrounding regions (census 1880)
• 
  Linguistic map of Istria (census 1880)
• 
  The Romanian Old Kingdom (1901)
• 
  Bulgaria in 1901
• 
  General map of Rumania (1967)
• 
  Confessions in Central Europe
• 
  Bukovina in 1901
• 
  Political map of Europe (1899)
• 
  Political map of Asia (1899)
• 
  Main subdivisions of Austria-Hungary (1899).
• 
  Political map of South America (1899)
• 
  Extermination of the American Bison to 1889
• 
  The density of the railway net in Europe (1902)
• 
  Map of Greece and European Turkey (1829)
• 
  Mexico (with the Buenaventura River and the Federal Republic of Central America (1929)
• 
  The United States in 1829
• 
  Europe in 1828
• 
  Austria-Hungary in 1828
• 
  The German confederation (1828)
• 
  The Ottoman Empire in Asia (1829)
• 
  The American continent in 1828
• 
  Africa in 1828
• 
  Asia in 1829
• 
  The Russian Empire in 1828
• 
  The world map (1829)
• 
  Historical map of Switzerland
• 
  The Lake Lucerne (1829)
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
  Ethnographic map of the Epirus region, 1878. Greek point of view
• 
  Walser settlements in northwestern Italy