I picked photography because my only other option was gardening, and I can't keep plants alive
Ah - photography.  The art and practice of creating images and memories.  Not to worry - what do you want to know about photography?
What was the first photograph a picture of?
Based on history of photograph, the first photo was done in 1717 which captured cut-out letters on a bottle of light sensitive slurry.  It has definitely evolved to what we see today.