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620 BCE
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?
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?
Aristotle was known as the father of zoology, and arranged animals based on habitat. -
285 BCE
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?
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?
Franciscan friar Luca Pacioli was the first to do double entry book keeping. -
1545
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?
Rafael Bombelli helped to contribute the correct rules for 'imaginary' numbers. -
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?
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?
Carolus Linnaeus developed scientific system of naming species. -
Minus Times Minus is What?
Casper Wessel and Jean Argand created different representations of 'imaginary' numbers. -
*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?
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.