Carl Linnaeus (Carl von Linné or Carolus Linnaeus), often called the Father of Taxonomy, was born on 23 May 1707 in Stenbrohult, Sweden. He started to study medicine at the University of Lund in 1727 but transferred to the University of Uppsala one year later. Here he collected and studied plants as part of the medical (pharmacotherapeutic) curriculum. Linnaeus attached great significance to plant sexual reproduction. Botanist Johann Siegesbeck called Linneaeus' plant classification system a "loathsome harlotry", but Linnaeus had his revenge and named a European weed Siegesbeckia.
Uppsala celebrate her most illustrius son with flower festivals, flower fashion shows, and a visit by the Japanese Emperor, who smiled for the camera.