Welcome to Bedtime History. Hello, this is Brack.

Growing up, one of my favorite childhood memories was using my imagination to build new things.

I'd take apart old, unused electronics or appliances in our home, and then try and rebuild them into something new and interesting.

They usually didn't work. They were more like works of art than functioning inventions, but I had a blast doing it.

What's great about a product like KiwiCo is the things you build as part of the engineering kits actually work.

My kids and I have built a few different projects together, including a ukulele, a pinball machine, headphones, and a speaker.

These projects include detailed instructions and also explain the science behind how the devices work.

As a parent, it can be hard to find creative ways to keep your children busy, challenged, and off screens.

KiwiCo does the legwork for you, so you can spend quality time tackling projects together.

KiwiCo also has boxes for geography and culture, the Atlas crate, and another one focused on cooking.

Other subjects are science, art, engineering, crafting, and design. KiwiCo also has crates designed for kids and adults of all ages.

Redefine Learning with Play. Explore hands-on projects that build creative confidence and problem-solving skills with KiwiCo.

Give 50% off your first month plus free shipping on any crate line at KiwiCo.com forward slash bedtime history.

That's 50% off your first month at kiwico.com slash bedtime history.

If you look around your house, and it's like mine, you'll probably notice a very common item.

Jar's are made out of it, some cups and bowls are made out of it, and maybe a few decorations on your shelves.

This is what windows are made out of, and the screens on tablets and phones. Can you guess what it is?

If you said glass, you are correct. Many household items are made from glass.

In fact, the jar that I was just drinking from is made from glass. Sometimes materials like glass are just taken for granted.

That means we have them, but we don't really understand how they are made or the history behind them, so we don't really think much about them.

But tonight we're going to talk about the history of glass, where it comes from, how it's made, and the many steps through history until it became the glass we know today.

So to my surprise, I found out glass has been around for a very long time. It's funny because I thought it was a more recent invention, but the earliest known, manmade glass, is from about 3500 BC, which is about 5500 years ago.

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