Fascinating biographical article of Satyendra Nath Bose and his early contributions to quantum mechanics. Always love to hear stories behind great scientists / scientific discoveries.

In particular, one thing I learned is that Bose postulated the idea of spin, maybe even before Pauli. Quite impressive!

Author is https://en.wikipedia.org/wiki/Partha_Ghose described as "one of India's best known popularizers of modern science."