Timeline of the discovery of the Cell

• Zacharias Jenssen created the first compound microscope.
• Robert Brown discovered the nucleus in a plant cell.
• Robert Hooke coined the term "cell".
• Anton Van Leevwenhoek observed the first cell under a microscope and called it "animacules"
• Theodor Shwann proposed that animals are composed of cells
• Matthias Schleiden proposed that plants are composed of cells.
• Carl Heinrich Braun proposed that cells are the basic unit of life.
• Rudolf Virchow proposed that cells came from pre-existing cells.