1. Martin Cooper was prepared first DynaTAC model mobile phone in 4 April 1973.
2. Dr. John White was search the first mechanical ice machine in 1841.
3. Motorcycle was invented in 1900 by Warner Brothers.
4. The world’s first cricket ball.
5. The camera was discovered in 1839
6. The world’s first photograph.
7. World’s first car discovered in 1771.
8. The world’s first engine train.
9. The first helicopter
10. The first airplane
11. The first accident
12. First Guitar
13. First radio
14. Miss World in 1896
15. First computer in world
16. The world’s first professional bodybuilder.
17. The world’s first machine gun.
18. The first rocket.
19. The first X-ray machine.
20. The first television.
