It is definitely arguable, but LEGO was voted a while ago the most popular toy ever invented.
The Chihuahua is the most popular breed of toy dogs. The second most popular toy dog breed is the teacup yorkie.
Ugly Dolls were the most popular toy last year.
Toy story
Worlds of Wonder - toy company - was created in 1980.
Worlds of Wonder - toy company - ended in 1990.
iphone
LEGOs
the pirate101 and wizard101 are most popular virtual world!
Military
Amoxicillin
Apple
the worlds most popular 4x4 would have to be the jeep wrangler. due to all of the aftermarket items available for it.