How did bird poop expand our territories around the world?

The bird poop was of great importance for the people that were moving into new territories, and this was due tot he properties of the same that make it an incredibly good natural fertilizer of the soil. With people being able to use it as a soil fertilizer and thus improve the quality of the soil, they were able to perform agriculture, so little by little they were able to expand their territories by using this simple method in their advantage.

because he created electricity