A note on my collection: Almost all of my albums are incomplete. (Even drawing from my already posted photos.) I just have not had time to put all of them in multiple, appropriate albums yet - but I'm slowly getting there.
Also, I get bored easily and enjoy posting different images every day, rather than, say, one hundred images of WW1 in a row.
Which may make things seem a little random, but they do all go in albums.
So, if you are interested in a certain topic, check back from time to time…