Harappan Civilization's writing has never been decoded. Harappan Civilization is a part of the Indus Valley Civilization. The languages of the Harappan Civilization belong to the Bronze Age and they are still today a mystery. This language is totally unattested to any source that is readable. This is one mystery that is yet to be solved.
America isn't truly free we are all watched we are all controlled <span />
Thinking it's end of salutatory neglect, Britain left colonies alone, but then out of nowhere the Frenc h- indian war they started to pay attention to them
Technology is probably the answer that you need. Other answers such as internet, cell phones, and airplanes are suitable answers as well.
Eli Whitney is credited with putting the concept of using mass-produced interchangeable parts into practice. He came up with this concept during a war, when he used these parts to create guns.