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Humphry Davy used electricity(wires and a battery) and carbon to make the crabon glow. This made the first electirc light. -
Thomas Edison used carbonized paper or bamboo to make the second lightbulb and did it in Jan 1879 at his laboratory in Menlo Park, New Jersey.
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.