Not so Professor. A Catholic Monk, Georges LeMaitre, psoted BBT prior to the observations of CMB and Hubble during the period of time when Einstein held fast to a static universe. Dang creationists.
The redshift arising from the recession of spiral galaxies was actually detected by Wirtz in the 1910s. Freidmann found the 'expanding universe' solution to the GR field equations in 1922. Le Maitre published in 1927. Hubble interpreted the redshift in terms of recession in 1929.