Eldarerathis summarized it very well. To add some things: The 1.1 version was internally called *Petit Four* by Google, and that's how it all began. Google is installing a giant pastry on their lawn at Mountain View each time a new version is about to be launched.

You can see pictures of that display at different stages here:


![Overall display (Cupcake to Eclair, with Nexus One)][1] Donut, Android logo, Nexus one, Cupcake, Eclair

![Honeycomb][2]Honeycomb

![Eclair, Froyo, Gingerbread, Honeycomb and Ice Cream Sandwich][3] Froyo, Gingerbread, Icecream Sandwich

![Gingerbread, Honeycomb, Ice Cream Sandwich and Jelly Bean][4] 

Gingerbread, Icecream Sandwich, Jelly Bean

![Kit-Kat][5] KitKat

![Lollipop][6] Lollipop

![Marshmallow][7] Marshmallow

![Nougat][8] Nougat



  [1]: https://farm5.static.flickr.com/4030/4453391412_8ec6dfa2a8_o.jpg
  [2]: http://eurodroid.com/pics/honeycomb_statue-1.jpg
  [3]: http://www.androidguys.com/wp-content/uploads/2011/10/ice_cream_googleplex.jpg
  [4]: http://s1.uswitchstatic.com/_img/library/news_image/android_jelly_bean_sculpture_at_googleplex_520x300x24_fill.jpg
  [5]: http://www.droid-life.com/wp-content/uploads/2013/09/kitkat-android-650x433.jpg
  [6]: http://www.androidcentral.com/sites/androidcentral.com/files/styles/large_wm_brw/public/article_images/2014/10/lollipop-statue-1.jpg?itok=Ikh29MXd
  [7]: http://www.androidcentral.com/sites/androidcentral.com/files/styles/w400h225crop/public/article_images/2015/12/android-marshmallow-4_0.jpg?itok=GsKySY9O
  [8]: http://www.androidcentral.com/sites/androidcentral.com/files/styles/xlarge_wm_brw/public/article_images/2016/06/android-nougat-statue-8.jpg