The Galilean principle of relativity:
The laws of classical mechanics apply in all inertial reference systems
No experiment carried out in an inertial frame of reference can determine the absolute velocity of the frame of reference
These two statements written above are equivalent.
Maxwell's equations were discovered later. My question is (1) how did Maxwell's equations contradict the Galilean principle of relativity?
Furthermore if one studies the two postulates of Einstein's special theory of relativity, they can be simply translated as follows:
Postulate 1: Galileo was right.
Postulate 2: Maxwell was right.
(2) How did the Maxwell equations retain the same form in all inertial frames by obeying the Lorentz transformation?