Lema\^{i}tre's Hubble relationship
  Edwin Hubble is often credited with discovering the expanding Universe based on spectra taken by him. This statement is incorrect and we feel that it is the responsibility of those who are aware of the historical facts to set the record straight. 
M.J. Way (NASA/GISS), Harry Nussbaumer (ETH, Switzerland)
physics.hist-ph astro-ph.CO gr-qc