What is an advancement in technology from the early humans?

Answer 1

One notable advancement is the digital watch. When early humans needed to know the exact time of day, they just had to settle for not knowing. They might guess from the position of the sun that it was about 10 AM, but they couldn't be sure. Our lives are now much easier because we can know it's precisely 10:14 and 32 seconds, with just a glance at our wrists.

Of course, nowadays we're seeing fewer digital watches, since many people use their cell phones for this. The cell phone can tell time, like a watch, but has the added advantage of removing the best excuse for not answering the phone when your mother calls you because "I guess I was out. Whadda ya want, ma?"