From a dusty time immemorial until now, the planet has been dusty.
Where did all of this dust come from? Well, from the beginning there were fewer sources, because things such as animal hairs and plant fibers didn’t exist. No, since the formation of the earth, the dusty surface was probably created by volcanic eruptions. From then vertebrates were in greater abundance, we can speculate that wind picked up dust from the soil and plants. And since then, we are mostly to blame for the dusty surfaces in our own homes because much of it comes from our own hair and skin.