FinalTimeline_Cabe

  • 620 BCE

    Minus Times Minus is What?

    Minus Times Minus is What?
    Brahmagupta used "debt" and "fortune" to describe negative and positive numbers.
  • 377 BCE

    Systematics or Taxonomy, What is the Difference?

    Systematics or Taxonomy, What is the Difference?
    Hippocrates was known as the father of medicine and looked to identify helpful and hurtful characters of plants.
  • 322 BCE

    Systematics or Taxonomy, What is the Difference?

    Systematics or Taxonomy, What is the Difference?
    Aristotle was known as the father of zoology, and arranged animals based on habitat.
  • 285 BCE

    Systematics or Taxonomy, What is the Difference?

    Systematics or Taxonomy, What is the Difference?
    Theophrastus was known as the father of botany, and he separated plants by four groups (tree, shrubs...)
  • 75

    Systematics or Taxonomy, What is the Difference?

    Systematics or Taxonomy, What is the Difference?
    Pliny the Elder was the first to introduce the first system of artificial organization and classification. "Historia Naturalis" was a book written by him and had information on over a thousand plants.
  • 1494

    Minus Times Minus is What?

    Minus Times Minus is What?
    Franciscan friar Luca Pacioli was the first to do double entry book keeping.
  • 1545

    Minus Times Minus is What?

    Minus Times Minus is What?
    Gerolamo Cardano first came across negatives in an equation when he had to sole sqrt(-15) in his "Ars Magna".
  • 1572

    *Minus Times Minus is What?

    *Minus Times Minus is What?
    Rafael Bombelli helped to contribute the correct rules for 'imaginary' numbers.
  • Minus Times Minus is What?

    Minus Times Minus is What?
    John Wallis created the number line and it gave meaning to negative numbers.
  • Systematics or Taxonomy, What is the Difference?

    Systematics or Taxonomy, What is the Difference?
    John Ray was the first to introduce the word "species" and described over 18,600 plants in his "Historia Generalis Plantanum".
  • *Systematics or Taxonomy, What is the Difference?

    *Systematics or Taxonomy, What is the Difference?
    Carolus Linnaeus developed scientific system of naming species.
  • Minus Times Minus is What?

    Minus Times Minus is What?
    Casper Wessel and Jean Argand created different representations of 'imaginary' numbers.
  • *Minus Times Minus is What?

    *Minus Times Minus is What?
    George Peacock helped to work on logic and algebra to define negative numbers and math related to them.
  • *Systematics or Taxonomy, What is the Difference?

    *Systematics or Taxonomy, What is the Difference?
    Sir Julian Huxley is now known as the father of new systematics - which is a combination of genetics, taxonomy, and other biological methods for classification.