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Chinese paper was probably made from hemp and then the bark of the mulberry tree. Later, the Chinese used rags.
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gunpowder was accidentally made by alchemists who were trying to find secret of eternal life
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Another Chinese invention is a type of fine pottery called porcelain.
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.