When households sold rags, bones and scraps back to peddlers, who passed them to factories as raw material, materials cycled between homes and factories in both directions. Once that loop broke and goods flowed only one way, from maker to user, the cast-offs piled up and a garbage crisis appeared.
For the first time in human history, getting rid of things became a separate activity, cut off from making, buying and using them. Even the first city trash services paid workers to pull out anything useful before burning or dumping the rest, showing how recent the idea of pure waste is.
The central feature of a throwaway society is spreading the logic of fashion to everything, so objects are discarded because their style is outdated, not because they no longer work. Convenience and constant technical change add to this, steadily raising the volume of what gets thrown out.
Nothing is inherently trash; whether something counts as waste depends on who is judging and what uses they can still see in it. Where goods and money were scarce, almost everything was reused, and the only true trash was what could neither rot nor feed an animal, like broken pottery and glass.
Mending and remaking take labor, and when people, especially women, entered paid work with no time to remake worn clothing, the habit of reuse collapsed. Growing factory output, new worries about sanitation and widening class differences pushed the same way.