Okay kiddo, so let's talk about the timeline of Pittsburgh! We're going back in time, all the way to before you were born.
Pittsburgh is a big city in Pennsylvania, and it has a long history. Way back in the 1700s, it was just a small village where people lived and worked. But then something important happened - people found out that there was a lot of coal and iron in the ground around Pittsburgh. That meant it was a good place to make things like steel and other metal stuff.
So, in the 1800s, Pittsburgh really started to grow. Factories were built, and more and more people came to the city to work in them. It became known as the "Steel City" because so much steel was made there. People were proud to live in Pittsburgh and to be a part of this big industrial city.
But things changed in the 1900s. People started to worry about pollution from all the factories in Pittsburgh. The air was dirty, and it was hard to breathe sometimes. The city had to work hard to clean up the air and the water.
Nowadays, Pittsburgh is still an important city, but it's different than it used to be. There are still factories and industry, but the air is cleaner and there's more focus on things like education and technology. Pittsburgh is known for its universities and for being a hub for innovation.
So, there you have it - a brief history of Pittsburgh! It started as a small village, became a big industrial city, and now it's a modern and innovative place to live.