Another Survey. (i have a lot of these) I need to know when these inventions, discoveries, break-through's, and allowances were and who invented, discovered, or let them happen.

I know it's long, but please just choose some of the numbers and choose different ones from everyone else. I'm NOT asking you to do all of them.

First list:
1)Airplanes
2)Anesthesia
3)Automobiles
4)Cars
5)Car racing
6)Horse racing
7)Ice cream
8)Coca-cola
9)Cell phones
10)Grenades
11)Nuclear Bomb
12)Missiles
13)Machine Guns
14)Semi-Automatic
15)Parachutes
16)Turn signals and headlights on cars
17)Public school for all genders
18)Public school for all ethnic groups
19)Toilet
20)Sink
21)Shower
22)Electricity
23)Gasoline
24)Anatomy of human body
25)DNA
26)Genes
27)Jeans
28)Women’s rights
29)Rights for all ethnicities
30)Computers
31)Laptops
32)Typewriter
33)TV
34)Phone
35)Light bulb
36)Air Conditioning
37)Bikes
38)Roller Skates
39)Milk Shakes
40)Needles (injections and withdrawing blood)
41)Purses
42)Hardback and Paperback books
43)Google
44)CDs
45)DVDs
46)Mp3 players and Mp3s
47)Record Player
48)Electric Guitar
49)Drums
50)Radio
51)Stereos
52)Handcuffs
53)Shotgun
54)Seat belts
55)Stuffed Animals
56)Batteries
57)Boats

Thank You and Good Luck!