The earliest tyres were bands of leather, then iron, (later steel), placed on wooden wheels, used on carts and wagons. Historically, the spelling was 'tire' and is of French origin which comes from the word tirer, to pull.
Pneumatic tyres
The first practical air-filled pneumatic tyre was made in 1888 by John Boyd Dunlop, a Scots-born vet, for his son Johnnie's tricycle.

John Boyd Dunlop
Hot tyres
285 million tyres were scrapped in 2011 in the US. The good news is that now several countries have strict regulations on disposal of tyres.
A major issue is tyre fires. The fire releases a dark, thick smoke that contains carbon monoxide, sulfur dioxide, and products of butadiene and styrene. Tyres can burn for weeks as they have a low thermal conductivity, they are difficult to cool down.
In 2014, 15,000 tonnes of tyres caught fire in Yorkshire, England.

A Nasa satellite picked up on this 6000 ft plume of smoke after 15,000 tonnes of tyres set alight at a tyre recycling plant in Sherburn-in-Elmet in North Yorkshire.

In Iowa City, Iowa, on May 26, 2012, a fire started in the ground tyre bedding material at the Iowa City Landfill, involving at least 7.5 acres of landfill. It was finally extinguished on June 12. Some tyre fires last for months.
Shoes, toucans and earthships
Apart from uses such as sub-grade fill and embankments, backfill for walls and bridge abutments, sub-grade insulation for roads, used tyres are used to make shoes, swings and many more things.
"I had to stop driving my car for a while... the tyres got dizzy"
Steven Wright, comedian
Are you familiar with earthships? An earthship is a type of passive solar house that is made of both natural and recycled materials (such as earth-filled tyres). Mike Reynolds, who is "the" earthship evangelist, started a revolution in building these off-grid structures.
Stay in a funky off-grid house
Try it out for yourself! You can stay at the Alberta earthship in Lethbridge County. Made of 800 recycled tyres and 12,000 cans encased in mortar, the long and skinny bungalow is a radically sustainable building that offers all the comforts of a modern home without any electricity or water bills.

Images
Tyre recycling fire ©Alamy Live News
NASA image ©PA
Earthship ©EVE Earthship Project tyre wall w/Visitor Center
Get your brain into gear
On a "tyrey" theme, which company is the largest manufacturer of tyres in the world? Answers, please.
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