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First car
This was the first car ever made, it was invented by Karl Benz and one major change was no horse was needed.
https://www.timetoast.com/timelines/the-history-of-cars--9 -
Ford Assembly Line
Ford's assembly line was invented. This changed everything, cars could now be produced in mass amounts.
http://www.history.com/this-day-in-history/fords-assembly-line-starts-rolling -
First Radio built into a car
First Radio was installed into a car. This gave passengers entertainment on their rides.
http://www.carhistory4u.com/the-last-100-years/parts-of-the-car/car-radio -
First Airbag
I was not able to find the exact date but the first airbag was created in 1952. This was a huge step in safety because now there was something protecting you if you crash.
http://ae-plus.com/milestones/john-hetrick-inventor-of-the-airbag -
Current land speed record
This is the current land speed record for the world. It was set by British Royal Airforce pilot Andy Green driving the jet-powered Thrust SSC which hit a speed of 763.035 mph. This is a huge evolution because this shows how advanced we are getting and now how fast we can go.
http://www.motorauthority.com/news/1085766_bloodhound-ssc-1000-mph-land-speed-record-attempt-to-be-streamed-live