Territory Of Bulgaria Berlin Congress (1878) Principality of Bulgaria 62,776.8 Eastern Roumelia 35,208.3 97,985.1 Carigrad Treaty (1886) Ceded to Turkey 1,639.6 96,345.5 Bukurest treaty (1914) Ceded to Roumania 7,695.8 Obtained from Turkey 23,187.2 111,836.9 Agreement with Turkey (1915) Obtained from Turkey 2,587.6 114,424.5 Treaty of Neuille (1919) Ceded to Yugoslavia 2,566.3 Ceded to Greece 8,712.0 103,146.2 2. Population The population of the principality in 1881 was 2,852,600, in 1906 a little over 4 million, and in 1939 6,272,900. It is to be noted that the population increase due to the increase in territory was minimal - the total external increase in population from the 1913-1919 period was a mere 4,810 people. Much more significant was the population increase with the Krajova aggreement (1940) of almost 300,000 people but this is outside the current survey. It is interesting to compare the change in population over 1878-1939 with the change over 1944-1994. This is left as a homework exercise for the reader.