Bose-Einstein Condensates — Graph

What did Satyendra Nath Bose mean by treating photons as genuinely indistinguishable from one another?
How did Einstein extend Bose's statistics from photons to atoms?
What is a Bose-Einstein condensate, and how does it behave differently from ordinary matter?
How long after the original prediction was a Bose-Einstein condensate actually created in a lab, and how was it done?

What happens to a cloud of atoms when it is cooled to within nanokelvins of absolute zero?
How did Wolfgang Ketterle prove that his sodium condensate was genuinely a matter wave rather than just very cold atoms?
Why did physicists have to wait until 1995 to realize a state predicted by Einstein and Bose in 1924?

How much had Lene Hau already slowed light down before the 2001 experiments stopped it entirely?