1. Which invention was made first? 2. Before his invention books were transcribed by hand or "printed" using wooden blocks. 3. It was invented by the German Johaness Gutenberg 4. Nobody can ever know who invented it. 5. It was invented before 4200-4000 BC, 6. The Egyptians and the Mesopotamians used them to build their pyramids and roll their heavy equipment. 7. It has its origin in the efforts to build and interconnect computer networks. 8. Which invention is more modern? 9. It has a mechanical device. 10. Which is made of different materials EM CẦN RẤT GẤP