Contributions to Cell theory

Events

Zacharias Jansen

1590

He invented the microscope

Robert Hooke

1665

He discovered the cell by looking at pork with microscopce

Anton van Leeuwenhoek

1674

He was first to see and describe bateria

Theodor Schwann

1838

He observed and said animals are made of cells

Matthias Schleiden

1839

He said that the different parts of the plant organism are composed of cells

Louis Pasteur

1850

He was the first scientist to prove that cells can only form from preexisting cells.

Rudolf Virchow

1855

He suggested the idea that all cells come from preexisting cells