As technology continues to change faster and faster, it's easy to forget how far we've come in a relatively short period of time. We put a man on the moon! No other country can say that. (We put 12 men on the moon). What are some other great achievements we have done over the past 50 years?

Here's a rundown from TownHall.com of some of the greatest scientific achievements of the last 50 years:

  • Cell Phones- While phones have been around since the late 1800s, cell phones only started to become widely available in the 1970s. Today, more than 90 percent of Americans and more than 4.6 billion people in the world are connected.
  • The Personal Computer- The personal computer only became widely available in 1974, but things really took off when Microsoft Windows became available in 1985.
  • Communications Satellites- We don't see them, but communications satellites send and receive data for GPS, TV, radio, weather tracking, military surveillance, space exploration and global communications among many other things.
  • The Internet- Believe it or not, the public only had access to the World Wide Web starting in 1993. Today, less than 20 years later, it has interconnected much of the globe.

What do you feel has been our greatest achievement over the past 50 years?