1. The horse is domesticated (3000 B.C.)
2. The Montgolfier Brothers create the hot air balloon, inventing air travel (1783 A.D.)
3. Jean-Joseph-Étienne Lenoir invents the first practical internal-combustion engine (1859 A.D.)
4. The Transcontinental Railroad is completed (1869 A.D.)
5. The first practical automobile is designed and built (1885 A.D.)
6. Piero Puricelli constructs the Autostrade, the world's first "motorway" in Italy, modernizing roads for automobile transit (1926 A.D.)
Senatore 1: Queste automobili sono sempre più popolari!
Senatore 2: Sì! Ma funzionano meglio su strade asfaltate!
Senatore 1: Dovremmo asfaltare più strade?
Senatore 2: Penso che dovremmo asfaltare più strade.
7. Construction begins on the American Interstate Highway System (1956 A.D.)
8. GPS becomes widely available for civilian use (1996 A.D.)
9. Fuel cell technology dramatically lowers exhaust emissions (2014 A.D.)
