Historical Display of Four Failed Inventions

I asked Nano Banana Pro to find me 4 failed inventions and explain why. Prompt: A detailed diorama on a long wooden desk showing a timeline of failed inventions from 4 different areas: 300 BC: failed invention with a tag explaining in a couple of words why 1400 AD: failed invention with a tag explaining in a couple of words why 1700 AD: failed invention with a tag explaining in a couple of words why 1900 AD: failed invention with a tag explaining in a couple of words why steampunk aesthetic, cluttered with scrolls, blueprints, gears, warm, workshop, lighting.