Birth rate change during the First World War in Czech lands

The aim is to study changes in fertility in the years 1914-1918, the distribution of live births by age of mother and marriage duration, the seasonality of live births and the impact of these changes on subsequent developments. Further tries to estimate the war effects depicted on age structure through the censuses of 1921, 1930, 1950, 1980 and 2001, to evaluate losses due to missing births during the First World War and the number of unborn in the second generation, to describe the impact of these changes on the probability of death. The main benefit would be to estimate the unborn in the second generation, which had been originally estimated in 1960 by Ivan Kochanovskov and recalculated in this work to the fertile period of generations of women from 1915 to 1920, then the time period 1930-1969