It's been 30 years since the first ".com"

If it weren't for .com, you wouldn't be where you are today. That is literally, right here, on CBSNews.com.

It was 30 years ago this Sunday -- March 15, 1985 -- that the first dot com domain was registered, changing, well, kind of everything.

"In the last 30 years, the Internet has evolved from an unknown phenomenon used primarily by academics and researchers to a global communication, commerce and information sharing channel that few could imagine life without," said Verisign, a leading seller of domain names. "In fact, nearly three billion people around the world are online today, and more than $300 billion in U.S. e-commerce sales and over $1.3 trillion in global e-commerce sales rely on the Internet."

Thirty years, three billion people, $1.3 trillion -- largely attributable to three little letters.

Now-defunct Massachusetts computer company Symbolics registered the first dot-com domain, symbolics.com, on March 15, 1985. (Though its machines are long dead, the site lives on.) The World Wide Web, which we use to access the information on the Internet, didn't even exist yet. It wasn't launched until 1991.

It would take until 1987 for the total number of .com domains to reach 100. Today, there's a .com registered every second. That's more than 80,000 per day.

Until the end of 2013, there were 22 domain extensions, including .net, .org and .edu, according to GoDaddy. And though .com is still the go-to for legitimate-looking web addresses, over a thousand new ones will be rolling out over the next few years. Look out for new options such as .food, .video, . goo, .rocks and .sucks.

Not that we need them. According to Verisign, if all 2.5 billion Internet users in the world registered a .com every second for 30 million years, that would only add up to one billionth of one billionth of one percent of all available domain names.

Check out the timeline the company put together illustrating the history of dot coms: