Washoe County Library System

Provides a timeline of the history of computers.

"If you could design a city that would be both a great place to live and good for the planet, what would it look like? Today, about four billion people—more than half the world’s population—live in cities. This number could rise to seven billion by 2050. Cities face big challenges, including threats from climate change, food insecurity, a lack of clean water and rapid population growth, but they are also places where innovation and sustainability...

"Building walls that separate us from others is as old as humanity. People have built walls to keep others out for thousands of years, from the Great Wall of China to Hadrian's Wall to security fences along the US-Mexico border. But did you know they've also been built to keep people in, to grow food, to control nature and to collect taxes? Sometimes they've helped people and kept communities safe, but they've also created inequity and done more...