The history of Tel Aviv is a short one, but there has been plenty to happen to the city since it's creation in 1909. Tel Aviv was founded while the territory was still under Ottoman Empire rule, but it is considered the first Hebrew city of the state of Israel. Jaffa was an important port city, but population increase and disatisfaction with local government caused some to move and found a new city. The city wasn't very big until the 1920's and 1930's, when a large gathering of Jewish immigrants from Europe began to settle. These Europeans brought their own different cultures and ideas, which created a very unique and hip culture in the city. This culture has survived today. After World War II, millions of Holocaust survivors began moving to Palestine and Tel Aviv. After Israel became a state in 1948, even more Jewish immigrants poured into the country, and Tel Aviv experienced an enormous population and growth spike. This caused the city to become a major business, cultural, and social center in the Middle East. Tel Aviv has had to deal with several wars and endless terrorism, but the city has held strong. After bombings, the population seems to come together to be strong and work through it. Tel Aviv is known as "the white city" because of  the "Bauhaus" architecture, recognised by UNESCO.