Scott Beale notes the 50th anniversary of the LEGO brick.
Burka asks, what is our preferred LEGO theme?
Does it show my age when I mention that pretty much the only theme available at the time was SPACE:
LEGO Space Shuttle (Model 442—1978)
Just so you know, the antenna in the back turns into a long range gauss gun. 
Look up the legos from your childhood on the LUGNET LEGO Set Database.
In 1977, there was a popular series of LEGO-like kits that allowed you to snap together models battleships, destroyers, and such. I don’t remember the name, but given the timing, they were the reason LEGO started to make themes. Here’s to that forgotten piece of toy history.
Soon people will ask your favorite theme of bug.
I used to make my own LEGO themes.
The plural of LEGO is LEGO.
That is all.
I did not have the Space Shuttle, “just” the “Galaxy Explorer” (http://img.lugnet.com/display.cgi?set/new/upload/6980-1-1005249745.jpg) and a space station built to resemble the one from “Moonraker”. That’s about it from what I had from the Lego Space theme.
I think I liked Knights best.