Veterans Day History. So now that you know when Veterans Day 2015 will be celebrated, on to a bit of history. The day â November 11 â marks the end of World War I, and was originally known in the United States as Armistice Day. This changed in 1954, when it became officially known as Veterans Day.
Malthius proposed a systematic theory of population. He believed that population growth is potentially exponential while the growth of the food supply is arithmetical at best. Linnaeus is the father of Taxonomy.he classified, named and ranked the organisms. So, Darwin proposed the idea of studying humans as groups rather than as individuals. (B) Report.
What he was more interested in was the way in which fundamental concepts like the very idea of â number â, âtimeâ âquantityâ, â causality â, â justice â and so on emerged. Piaget (1936) was the first psychologist to make a systematic study of cognitive development.His contributions include a theory of child cognitive development, detailed observational studies of cognition in children, and a series of simple but ingenious tests to reveal different cognitive abilities.iaget believed that cognitive development did not progress at a steady rate, but rather in leaps and bounds. Equilibrium occurs when a child's schemas can deal with most new information through assimilation.