The tags, <html> and </html>, are examples of paired tags. The second one is like the first one except that it begins with a / symbol. A pair of tags affects how a browser will display the text between the first tag and the second tag. Leaving out the second tag usually changes the display of the rest of the document.
A Redline. Hot Wheels car is one that was manufactured within the first ten years of production, 1968 to 1977. The term redline derives from the fact that, during that period, the cars were manufactured with a red stripe on the tire.
The first car that Cugnot made, the Steamer like the name implies was a steam-powered artillery tractor. William Murdoch built a steam-powered carriage in 1784. So, in fact, the first car invented or made in all of history was also the first steam car. Oliver Evans was granted the first American automobile patent in 1789. In 1805 Evans demonstrated the first American car (arguably) which was also an amphibious vehicle. On land it traveled by wheels and in water it used a paddle wheel. Richard Trevithick, in 1801 was running a full size steam powered car in England.