Observational Foundations of Cosmology

Some links and essays on the early years of cosmology

Historical papers
Let's Trash-Talk Hubble! - Papers from 2011
A Tale of two Blunders - How Lemaitre and Hubble blundered yet determined the same value for the Hubble constant.
The Folly of Citations - Who first measured the radial velocity of NGC 1700? The citations won't help you.
The de Sitter Effect - What is it, exactly?
De Sitter's role in discovering the "expanding universe"
Lundmark Blunders No one ever noticed that Lundmark's distances have a severe bias with apparent magnitude. Until now.
Line 20 If you think you know who first measured the "Hubble Constant", you are wrong.
Fourteen Months That is how long it took for people to realize that the universe is expanding.
IAU Resolution B4 The IAU has taken leave of its senses.
Expanding or Stationary? Before you give someone credit for discovering the expanding universe, you first need to define what you mean by expanding.
Weyl or Lemaitre? Who gets credit for deriving the Hubble law?
M31-V1 The first Cepheid identified by Hubble in M31 (quote from Dave Soderblom)