Present thesis describes social history of Krško between the years 5 and 1918. The analysis is based on birth, marriage and death records. Thorough analysis of children's baptisms registered in birth records enables social, national, professional and demographic insight to the population of Krško and their economic situation in the period mentioned. In Krško vicar was usually the one to register the data. After 1894 the vicarage of Krško became a parish, therefore it was the priest who registered the data. The sacraments were given by Capuchin Fathers, especially after 1900. The longer the period when a priest or a vicar left and another took the position, the higher the number of registries made by Capuchins. The records are registered in German language and in Gothic alphabet, since 1865 there are also some cases of surnames registered in Slovene and a script which is something between the Gothic alphabet and Gaj's Latin alphabet After 1900 all the records are registered in Slovene language and in Gaj's Latin alphabet, later than in other parishes of Diocese of Ljubljana and Diocese of Lavant, where changes of language and writings in registers took place in the second half of the 19th century. Between 5 and ,4 2 children were born in Krško, one percent more girls than boys, which is the opposite of other parishes in comparison (Ig, Trnovo, Preloka and Celje). There has been an increased number of births in autumn and winter, except December, and a smaller number of births in spring and summer, except August. This data matches with other rectories in comparison. Similar conclusions are made about conceptions, except in another time – an increased number of conceptions in the first half of the year, except April, and a lower number in the second half, except November. In comparison to other mentioned parishes the number of births in Krško has declined between 1880 and 1918, which is the result of an economic crisis of Krško – no direct rail link, neighbouring Styrian village Videm, took over the transport and trading, collapse of rafting and related trading, lack of industry due to little space between the hill Trška gora and Sava river. Due to these facts Krško was not the destination of great immigration and consequently the number of births became to decrease.Krško was therefore in decline economically in the last decades of th century. The fact is seen from the profession of men – they were mostly officials or tradesmen and not so much merchants or farmers. Krško was slowly becoming poorer in the second half of 19th century, due to the increased number of farmers within the city population. A smaller number of tradesmen and upcoming trading professions show a lower economic development of Krško in the beginning of 19 th century due to industrialization. Krško was in development mostly because of outnumbered public institutions and the incline of different correlated professions. From the analysis of birth registers it is seen that in the middle of 19th century children were mostly baptised on the same day as they were born or the day after. In the last period of the analysis more than half of the children were baptised the seventh day after birth and later. Analysing professions of the parents that baptised their children on the day of birth, we defined that the ones bringing changes to baptising tradition were wealthy and educated people. This group of people grew from decade to decade and finally covered the whole town. In the years taken in the analysis all children were given names, except stillborns and the ones baptised in need. A certain set of names was formed. There were more names for boys. Jožef and Franc were the most common names for boys. Marija was the most common name for girls. The list of most common names changed from decade to decade. Three quarters of children were given one name, a bit less than a quarter were given two names, five percent of them were given three and less than one per cent more than three names. A comparison with the mentioned rectories shows that giving more names was more common in the urban than rural surroundings. More than one name was mostly given to girls. More than a half of children, irrespective of their father's profession, were given one name. In the last analysed period only the fathers who worked on soil or in the woods gave their children one name. Two names were given to children whose parents were landlords or working for public institutions. Godparents were usually relatives or friends. Sometimes they were of the similar profession as the parents, who aimed to pick a godparent who was of the same financial status or even wealthier. Parents used to pick two godparents at first. The godparents could be married couples or couples picked by chance. From 1990 on parents only picked one godparent. Some people were very likable so they had the role of a godparent more than once. This became less of a practice with decades. There were more people who were godparents only once or a few times. Three quarters of 216 godparents were literate according to their signatures in the birth register between 1850 and 1867. Stillborn babies, children baptised in need and twins were given special treatment. Death of a child was an accident and it was not a consequence of any professional, social nor financial status of the family. The majority of twins had only one name. There are first cases of baptisms after the first day of birth in the case of twins and children baptised in need after 1910. In that time the postponement of baptism was already a practice. Illegitimate children were treated the same as the legitimate ones when registered. There were relatively little illegitimate children in Krško – only ten percent. All illegitimate children, except one, were given one name. The time difference between the birth and the baptising of these children was increasing as well. There are some specific cases of choosing two godparents by chance. These godparents were not at the top of the social or financial status. Approximately two thirds of mothers of these illegitimate children had their own job, a bit less than one third are registered under the profession of the child's father, other data about their profession are not known. The analysis of registers unfolded some other interesting facts: changing of religion from Evangelic to Catholic, modification of a name and two surnames. There were quite a few cases of accepting fatherhood subsequently, which usually happened after a marriage between the parents.