I doubt that. Science and philosophy used to be considered very closely related. Many people we think of as philosophers were really both scientists and philosophers in their time.
Yeah, an awful lot of ancient civilizations knew an awful lot about astronomy and presumably it wasn't all just dictated to them on clay tablets by Ishtar or whoever
I guess that depends on how you define a scientist. I'm sure even pre-historic tribes had members that were smarter than others and like to study things and make inventions.
I feel the same way. Is leavened bread science? Nixtamalization? Collecting raw materials with interesting properties? Observing river and ocean currents? Making plant based medicine, dyes, or clothes? Tanning hides?
There are so many skills developed and improved on over time for us to have gotten to where we are. Ugg the cavemen or an early farmer or a stargazing shepard wouldn't have called themselves scientists, but they were most certainly doing science.