Place these events in the development of the internet in the order in which they occurred, from first to...

Place these events in the development of the internet in the order in which they occurred, from first to last.
1. The U.S. Department of Defense set the groundwork for what would become the ARPANET.
2. Early networking between computers involved digitizing information into quantified units called bits.
3. NASA worked with SPAN to create the NASA Science Internet, connecting scientists in the first worldwide network.
4. Commerce restrictions were lifted, giving rise to Internet Service Providers.