Why did the universe seem static?

The universe seemed static because, for much of human history, scientists believed it was unchanging and eternal, based on the prevailing view of a static cosmos. This perception was supported by the lack of observable evidence for cosmic expansion or contraction until the early 20th century. It wasn't until Edwin Hubble's observations in the 1920s revealed the redshift of distant galaxies, indicating that the universe is expanding, that the static model was challenged and ultimately replaced by our current understanding of a dynamic, evolving universe.