What year was newton abandoned?

Answer 1

If you mean to ask when the scientific theories of Isaac newton were proven wrong, that has not happened. Many of this theories, such as his definition of force (force equals mass times acceleration) and the laws of motion, are precisely as valid today as they were when he first presented them, and are a fundamental part of physics. Other theories have been partially modified. We still recognize Newton's Law of Universal Gravitation as a useful first approximation of the way gravity works, although Albert Einstein did present a more accurate theory of gravity in the early 20th century. No scientist would say that Newton has been abandoned. We have built on his early work.