The biggest problems in the past was the population increase. If prosperous villages attracted more people and grew steadily it was the subsequent separation of human beings from their natural environment that produced an artificial world in which people no longer had to concern themselves with the cycles of nature. Demographic increase avoiding economic pressure, led to suburbanization and the spread of settlements beyond the original boundaries. Although the density of population also posed a great problem not only in the organization of their supplies and fire safety but also in disease prevention. Along with the development of cities came great epidemics…
