Cell Phones By a.massengill Apr 3, 1973 Martin Cooper created first phone https://en.wikipedia.org/wiki/Martin_Cooper_(inventor) Jan 1, 1983 First phone went on sale in us for 4,000 https://en.wikipedia.org/wiki/Mobile_phone Jan 1, 2014 From 1983 to 2014 worldwide mobile phone subscriptions grew over 7 billion https://qz.com/.../more-people-around-the-world-have-cell-phones-than-ever-had-lan. Jan 1, 2016 top smart phone developers were samsung, apple, and huawei https://www.zdnet.com/article/10-best-smartphones-to-kick-off-2016/ Jan 1, 2016 feature phone "dumb phones" as of 2016 https://en.wikipedia.org/wiki/Feature_phone Sep 30, 2017 2017 iphone leads the race for best sellers in america https://www.bbva.com/en/top-selling-smartphones-brands-2017-iphone-leads-race/ Nov 16, 2018 2018 best selling phones. Iphone, samsung, google pixle, and huawei p20 pro https://www.zdnet.com/article/10-best-smartphon
