i know that they made a boat/truck that actually worked but other than that im not sure
The Cuban militia and the Cuban military
velcro
It depends on what kind of technology you are talking about, but of course most computers, mobile phones, clothes and toys are made in china.
More and newer technology has been made and it improves the cars immensely
Skyscrapers
They have things like the water wheel, crossbows and they made pyramids..
Carlos Manuel de Cespedes, who made the declaration of Cuban independence in 1868.
Many sports have been improved by technology, instant replay has revolutionized the sports, and made it easier for refs to make the right calls.
Tracking devices.
Technology has made it possible for people of different cultures to interact freely. Cultural exchanges have also been greatly influenced by technology.
The Cuban Missile Crisis of October, 1962, was the closest we've been to a nuclear exchange. See the link below for more detailed information.
Over 100