Slapped cheek disease (also known as fifth disease or parvovirus B19). Incubation period: 1-20 days. Infectious period: A few days before the rash appears (children are no longer contagious when the rash appears).Symptoms: 1  It begins with a fever and nasal discharge.2  A bright red rash, like the mark left by a slap, appears on the cheeks.ncubation period: 1-20 days. Infectious period: A few days before the rash appears (children are no longer contagious when the rash appears). Symptoms: 1  It begins with a fever and nasal discharge. 2  A bright red rash, like the mark left by a slap, appears on the cheeks.
#1. The First Photograph. The worldâs first photograph made in a camera was taken in 1826 by Joseph NicÃ©phore NiÃ©pce. The photograph was taken from the upstairâs windows of NiÃ©pceâs estate in the Burgundy region of France.
Cyanotypy was used in 1843 by photographer Anna Atkins to illustrate the book British Algae: Cyanotype Impressions by Anna Atkins, considered the earliest example of a book illustrated by a purely photographic process. Most of the continuous tone cyanotypes date largely from the period from 1880's to 1920's. They can be found in amateur prints (given the simplicity and non-toxicity of the process) made from 4x5 plates, postcards, studio portraits and as topographical views and novelty subjects.