233) In the middle of the 15th Century, ?.. was successful in operating the first printing press with movable types at Mainz in Germany.

234) Before the invention of the _____, Knowledge was the privilege of the wealthy people

235) In _____, Constantinople, the capital of Eastern Roman Empire was captured by the Turks.

236) _____ actually came to be known as the ′Athens of Italy′.

237) Machiavelli was the great political writer of