Dublin is the capital and largest city of Ireland. Founded around the 7th Century AD it expanded as a Viking settlement and became Ireland’s principal city at the end of the 12th Century. Dublin boasts a robust economy; Ireland is the fastest growing economy in the European Union. It is considered a major tech hub with many large Tech companies based in the city. Dublin is a historical and contemporary centre for education, the arts, administration and industry as well and is ranked in the top 30 cities in the world.