The geocentric model of the solar system worked pretty well for quite a long time. People believed it because it seemed to explain the observed world.
Looking up at the night sky, things seem to go around us — the sun, the moon, stars, and planets. It’s easy for us, with the benefit of millennia of thought and careful observation from others, to chuckle at the silliness of a solar system with the earth at its center.
Truth is, without the benefit of other people’s work on this issue, if you or I looked up at the night sky every night…
