In the early 19th century, there were two political groups in Germany. The liberals wanted a democratic system with one strong central government. The conservatives wanted Germany to be made of a group of independent, weak states . In 1848, revolution came to Europe. Frederick William IV was worried. He allowed a National Assembly and a constitution. The new Frankfurt Parliament wanted to give Frederick William the crown of all Germany, but he did not want it. He said that revolutionaries could not name kings. Now Prussia had a semi-democratic constitution, but really the nobility with land (the Junkers) had the power, especially in the east.