  Weyl’s major contribution to cosmology is known as “Weyl’s  Hypothesis”. The name was coined by Weyl (1926d) himself in an  article in the Encyclopedia of Britannica.[65]  According to Weyl’s Postulate, the worldlines of all galaxies are  non-intersecting diverging geodesics that have a common origin in the distant past. From this system of worldlines Weyl derived a common  cosmic time. On the basis of his postulate, Weyl (1923c, Appendix  III) was also the first to show that there is an approximately  linear relation between the redshift of galactic spectra and distance. Weyl had basically discovered Hubble’s Law six  years prior to Hubble’s formulation of it in 1929. Another  contribution to cosmology is Weyl’s (1919b) spherically symmetric  static exact solution to Einstein’s   linearized[66]  field equations. 