Hello!
Before the development of agriculture, humans were nomadic. This means that they traveled constantly to keep up with the migration of animals and other food sources. When people discovered agriculture, they discovered how to farm and grow crops. In addition, people discovered that they could herd and domesticate animals.
The development of agriculture is considered a "revolution" because humans could become sedentary (live a settled lifestyle) rather than remaining nomadic. This led to the first human civilizations which have over time developed into the world we know today.
I hope this helps you! Feel free to comment or PM me if you have any additional questions. Have a great day!
