Seems like android has been around for an extremely long time. The fun fact about android is that android was originally made for digital cameras. Android has transformed and evolved a lot over time. There are a lot of different versions, and every version of Android is a code name, which many people use instead of the version numbers like Android8.0-8.1, Oreo,Android7.0-7.1.2,Nougat:Android6.0-6.0.1,Marshmallow,Android5.0-5.1.1, Lollipop. Each one is named after a dessert or some other form of confection, which is more for fun than anything else. To know more visit at:  https://www.howtogeek.com/345250/whats-the-latest-version-of-android/