Darwin (1859) recognized the fact that paleontology then seemed to provide evidence against rather for evolution in general or the gradual origin of taxonomic categories in particular. ↗
When the French nation gradually came into existence among the ruins of the Roman civilization in Gaul, a new language was at the same time slowly evolved. ↗
The first year I started in San Francisco, there was an American work on every program and there's been a lot of music by living composers and gradually that was part of the process of getting the audience really to trust me. ↗