I am not sure who first put a camera on a cellphone but it was a powerful thing to so. A cellphone is in my pocket. My iPad is nearby and handy. Either can take pictures (or videos with sound and motion) of things happening around me. They make for a photographed life.
Take a look:
https://drive.google.com/open?id=1hjmIROuXhvtKW8wzGJvtqy12-QqBX_BP
The pictures show our amaryllis as it blooms, Lynn filling the bird feeders in our back yard and snow.