University was reorganized as a modern institution in 1861. Abdülaziz was also the first sultan who traveled outside his empire. His 1867 trip included a visit to the United Kingdom. The Press and Journalism Regulation Code (Matbuat Nizamnamesi, 1864); among others. 1876 the first international mailing network between Istanbul and the lands beyond the vast Ottoman Empire was established. In 1901 the first money transfers were made through the post offices and the first cargo services became operational. In 1868 homosexuality was decriminalised The Christian millets gained privileges, such as in the Armenian National Constitution of 1863. This Divan-approved form of the Code of Regulations consisted of 150 articles drafted by the Armenian intelligentsia. Another institution was the newly formed Armenian National Assembly. The Christian population of the empire, owing to their higher educational levels, started to pull ahead of the Muslim majority, leading to much resentment on the part of the latter. In 1861, there were 571 primary and 94 secondary schools for Ottoman Christians with 140,000 pupils in total, a figure that vastly exceeded the number of Muslim children in school at the same time, who were further hindered by the amount of time spent learning Arabic and Islamic theology. In turn, the higher educational levels of the Christians allowed them to play a large role in the economy. In 1911, of the 654 wholesale companies in Istanbul, 528 were owned by ethnic Greeks. In 1871 the Ministry of Post and the Telegraph Administration were merged, becoming the Ministry of Post and Telegraph. In July 1881 the first telephone circuit in Istanbul was established between the Ministry of Post and Telegraph in the Soğukçeşme quarter and the Postahane-i Amire in the Yenicami quarter. On 23 May 1909, the first manual telephone exchange with a 50 line capacity entered service in the Büyük Postane (Grand Post Office) in Sirkeci. Bulgaria, 1870s The rise of national awakening of Bulgaria led to the Bulgarian revival movement. Unlike Greece and Serbia, the nationalist movement in Bulgaria did not concentrate initially on armed resistance against the Ottoman Empire. After the establishment of the Bulgarian Exarchate on 28 February 1870, a large-scale armed struggle started to develop as late as the beginning of the 1870s with the establishment of the Internal Revolutionary Organisation and the Bulgarian Revolutionary Central Committee, as well as the active involvement of Vasil Levski in both organizations. The struggle reached