A dramatic rise in late preterm births, or babies born between 34 and 36 weeks gestation, was also seen between 1992 and 2002. Researchers reported a 12% rise in these late preterm births during the 10-year study period, representing almost three-quarters of all preterm births.
Specifically, it represents an epistemological stance. There are many flavors of constructivism, but one prominent theorist known for his constructivist views is Jean Piaget, who focused on how humans make meaning in relation to the interaction between their experiences and their ideas.
Original theory of relativity: Galileo Galilei. The theories of general and special relativity: Albert Einstein. Albert Einstein developed the theory of relativity. Albert Einstein developed the theory of relativity between 1907 through 1915. It was further developed by Max Planck, Hermann Minkowski, and others. If you are referring to the theory of relativity it would be Albert Einstein.