On 4 June 1924, a relatively unknown Satyendra Nath Bose from Dacca University in East Bengal, India, sent a short article to Albert Einstein with an accompanying letter (see figure 1), which beginsRespected Sir,I have ventured to send you the accompanying article for your perusal and opinion. I am anxious to know what you think of it. You will see that I have tried to deduce the coefficient8&pgr;&ngr;2/c3in Planck's law independent of the classical electrodynamics only assuming that the ultimate elementary regions in the Phase‐space has the contenth3.I do not know sufficient German to translate the paper. If you think the paper worth publication, I shall be grateful if you arrange its publication inZeitscrift fu¨r Physik.Bose goes on:Though a complete stranger to you, I do not feel any hesitation in making such a request. Because we are all your pupils though profiting only by your teachings through your writings….Yours faithfully,S. N. Bose