Transylvania population of Transylvania for the years 1830-1840 the majority were 62.3% Romanians and 23.3% Hungarians. In the last quarter of the 19th century, the Hungarian population of Transylvania increased from 24.9% in 1869 to 31.6%, as indicated in the 1910 Hungarian census. At the same time, the percentage of Romanian population decreased from 59.0% to 53.8% and the percentage of German population decreased from 11.9% to 10.7%, for a total population of 5,262,495. Magyarization policies greatly contributed to this shift. The percentage of Romanian majority has significantly increased since the declaration of the union of Transylvania with Romania after World
Principality of Transylvania (1570–1711) the last political triumph of Hungarian Protestantism, in which the emperor was forced to confirm again the articles of the Peace of Vienna. Gabriel Bethlen and George I Rákóczi also did much for education and culture, and their era has justly been called the golden era of Transylvania. They lavished money on the embellishment of their capital Alba Iulia, which became the main bulwark of Protestantism in Eastern Europe. During their reign Transylvania was also one of the few European countries where Roman Catholics, Calvinists, Lutherans, and Unitarians lived in mutual tolerance, all of them belonging to the officially accepted