Microscope

Microscopic lenses

1680 BCE

Anton Van Leeuwenhoek invited the early microscopic lenses
He discovered the animalcules which are now called bacteria
It opened up a whole new world of microscopic that scientist could never before.

Hypothesis

1668 BCE

His investigation was one of the earliest examples of using controls to test hypothesis
He determined that living thing arise from other living things

Spontaneous generation

1667 BCE

Established from his observations that microorganisms do not grow from eggs and proposed
A theory of spontaneous generation whereby living organisms develop from non-living matter at the microscopic level.

Invented Microscope

1590 BCE

Observed that viewed objects in front of the tube appear greatly enlarged.
Compound Microscope and the telescope
Making one of the earliest compound microscopes.1590.

Compound Microscope

1665

Observed tiny structures, he called these structure "cells". They reminded him the rooms that monks lived in.
Discovered the first plant cells.

Cell theory

1768

Hypothesis if the broth is boiled and then sealed, it will never spoil
Living things can only come from other living things

Father of Microbiology

1856

Observed the first motile organisms
He gathered the animalcules from the drop of pond water he collected
Discovered bacteria

Stanley Miller

1953

Performed an experiment that may explain what occurred billions of years ago.
He sent an electrical charge through a flask of chemical solution of methane, ammonia hydrogen and water.
This created organic compound including amino acids.

Harold Urey

1953

Experiment was a simulation of conditions on the early testing the idea that life, or more specifically organic molecules, could have performed by nothing more than simple chemical reaction

Eukaryotic

1967

Her serial endosymbiotic theory (SET) of eukaryotic cell development over turned the modern concept of how life originated on earth.