There's an article at the above site: https://inference-review.com/article/the-origins-of-python

From it I learned a remarkable nugget of computing history: P.J. Plauger, well known as a C language guy (he and I were both on X3J11, the C Language Standards committee), originated the idea of using significant white space as the "signal" to the compiler to indicate statement grouping instead of using begin/end keywords or braces.