This is a list of important publications in physics, organized by field.
Some reasons why a particular publication might be regarded as important:
Astrophysics employs physical principles "to ascertain the nature of the heavenly bodies, rather than their positions or motions in space."
Classical mechanics is the system of physics begun by Isaac Newton and his contemporaries. It is concerned with the motion of macroscopic objects at speeds well below the speed of light.
Condensed matter physics deals with the physical properties of condensed phases of matter. These properties appear when atoms interact strongly and adhere to each other or are otherwise concentrated.
The primary sources section of the latter article in particular contains many additional (early) publications of importance in the field.
Minkowski relativity papers: