As a cosmologist I am often asked when was the Epoch of Galaxy Formation?
Here I provide the definitive answer: the meeting entitled The Epoch of Galaxy Formation took place in Durham between July 18th and 22nd 1988, i.e. about 33 years ago. Here is a relic of that period.
I am in there with John Barrow to my left (ie your right) . I can also identify Jim Peebles, Simon White, Richard Ellis, George Efstathiou and Carlos Frenk, Martin Rees and Tom Shanks among others but I wonder how many others you can identify…
P.S. Note the male-female asymmetry in cosmology was much greater in this period during the early Universe.
UPDATE: here is the solution to the problem.
In the Dark 