By the 1920s, much of the nation’s commerce was handled by mail via the U.S. Post Office. By the 2020s, much of the nation’s commerce is handled via the internet. As different as “snail mail” and the internet are, there are some similarities as well…
The U.S. postal system was established by the Second Continental Congress, and Benjamin Franklin was the first postmaster general. He established the foundation for many aspects of the nation’s mail system.
https://www.freightwaves.com/news/freightwaves-classicsairmail-helped-build-nations-airlines