Nano Banana Image Generation: 2x2 Grid of Historical Inventions

2x2 grid, do this for 4 important years in history and their most important inventions { Anchor: `[Letter/Number] :: [Era/Theme (e.g., 1980s Retro Tech / Victorian Steampunk)]::4` Morphology: `3D Typographic sculpture of [Letter/Number], character shape defined by a dense pile of [Era/Theme] objects, chaotic but legible assemblage, graphic design asset::3` Material Physics: `Textures of [Era/Theme] objects (plastic, rust, wood), occlusion between stacked items, realistic scale of constituent parts forming the glyph::3` Illumination: `Three-point studio lighting, softbox overhead, clean background for isolation::2` Render Stack: `Cinema 4D render, isometric or front-facing, ambient occlusion, 8k, Adobe Substance material suite::1` Negative: `[Illegible, flat font, 2D, handwriting, paper, messy background, floating objects]:: -1`}