The Internal Macedonian Revolutionary Organization was a secret revolutionary society in the Ottoman territories in Europe, that operated in the late 19th and early 20th centuries.
The Ilinden–Preobrazhenie Uprising, or simply the Ilinden Uprising of August - October 1903, was an organized revolt against the Ottoman Empire, which was prepared and carried out by the Internal Macedonian-Adrianople Revolutionary Organization, with the support of the Supreme Macedonian-Adrianople Committee. The name of the uprising refers to Ilinden, a name for Elijah's day, and to Preobrazhenie which means Transfiguration. The revolt lasted from the beginning of August to the end of October and covered a vast territory from the eastern Black Sea coast to the shores of Lake Ohrid.
Georgi Nikolov Delchev, known as Gotse Delchev or Goce Delčev, was an important Macedonian Bulgarian revolutionary (komitadji), active in the Ottoman ruled Macedonia and Adrianople regions at the turn of the 20th century. He was the most prominent leader of what is known today as Internal Macedonian Revolutionary Organization (IMRO), a secret revolutionary society, active in Ottoman territories in the Balkans, at the end of the 19th and the beginning of the 20th century. Delchev was its representative in Sofia, the capital of Principality of Bulgaria. As such he was elected also a member of the Supreme Macedonian-Adrianople Committee (SMAC), participating in the work of its governing body. Though, he was killed in a battle with an Ottoman unit on the eve of the Ilinden-Preobrazhenie uprising.
Damyan Yovanov Gruev, was а Macedonian Bulgarian teacher, revolutionary and insurgent leader in Ottoman regions of Macedonia and Thrace. He was among the founders of the Internal Macedonian Revolutionary Organization. Despite his Bulgarian self-identification, according to the post-World War II Macedonian historiography, he was an ethnic Macedonian.
Gyorche Petrov Nikolov born Georgi Petrov Nikolov, was a Bulgarian revolutionary, one of the leaders of the Bulgarian Macedonian-Adrianople Revolutionary Committees. Despite his Bulgarian self-identification, according to the post-World War II Macedonian historiography, he was an ethnic Macedonian.
Ivan Garvanov was a Bulgarian revolutionary and leader of the revolutionary movement in Ottoman Macedonia and Southern Thrace.
Supreme Macedonian-Adrianople Committee (SMAC),, also known as Supreme Macedonian Committee was a Bulgarian paramilitary and political organization, active in Bulgaria as well as in Macedonia and Thrace regions of the Ottoman Empire. It was based in Bulgaria from 1895 to 1905. Macedonian Bulgarian and Thracian Bulgarian emigrants in Bulgaria were a great number. Led by Trayko Kitanchev, they formed in 1895 the “Macedonian-Adrianople Organization”, at the head of which was “Supreme Macedonian-Adrianople Revolutionary Committee”. Its official declaration was also a struggle for autonomy of Macedonia and Thrace. At the same time, being impatient for the liberty to come sooner, and strongly convinced that it would come only with the help of the Bulgarian Army. Later they directed their efforts in activities for involving the country into war with the Ottoman Empire as for example during the Supreme Macedonian Committee chetas' action in 1895, and the Gorna Dzhumaya Uprising in 1902. As a rule most of the leaders were with stronger connections with the governments. At the end their main idea was, waging struggle for a direct unification with Bulgaria.
The Bulgarian Secret Revolutionary Brotherhood was organized from a small group of Macedonian Bulgarian conservatives, adherents of evolutionary methods of struggle, in Salonica.
The World Macedonian Congress is a self-declared "non-formal parliament of the ethnic Macedonians". It presents itself as an organization fighting and demanding for more human rights to ethnic Macedonians on an international level, but is seen as an ultranationalist organization, supporting the controversial antiquization, by independent researchers and media. It is officially registered as a non-governmental organization based in North Macedonia. The organization was registered during the fall of communism, on 15 September 1990 by Todor Petrov, who is also the president of the organization. Closely related to the World Macedonian Congress are certain Macedonian organizations in the neighboring countries of North Macedonia from whom with larger importance, the Macedonian Party in Albania, the OMO Ilinden in Bulgaria, and the Democratic Party of the Macedonians in Kosovo founded by the organization’s member Ismail Boyda.
Hristo Dimitrov Uzunov was a Macedonian Bulgarian teacher and revolutionary, head of the Ohrid branch of the Internal Macedonian Revolutionary Organization and its ideological leader in the Ohrid region. Despite his Bulgarian self-identification, according to the post-WWII Macedonian historiography, he was an ethnic Macedonian.
Yordan Piperkov (1870–1903), widely known as Yordan Piperkata, was a Macedonian Bulgarian revolutionary from the early 20th century, member of the Supreme Macedonian-Adrianople Committee and later of the Internal Macedonian-Adrianople Revolutionary Organization (IMARO). According to the post-WWII Macedonian historiography, he was an ethnic Macedonian.
Petrova Niva is a historic area in the Strandzha mountains of southeastern Bulgaria where, between 11 and 13 July 1903, a group of Bulgarian Internal Macedonian-Adrianople Revolutionary Organization (IMARO) delegates announced the outbreak of an anti-Ottoman uprising aimed at liberating southern Thrace from Ottoman rule and proclaimed the Strandzha Republic.
Petar Dimitrov Angelov was a Bulgarian military officer and a revolutionary, a member of the Internal Macedonian-Adrianople Revolutionary Organization (IMARO).
Konstantin Antonov Ivanov, nicknamed Sechenkata, and also known under the name Valcho Antonov, was a Bulgarian revolutionary, a member of the Supreme Macedonian-Adrianople Committee, the Internal Macedonian-Adrianople Revolutionary Organization (IMARO) and the Bulgarian Communist Party.
The Macedonian Secret Revolutionary Committee(MSRC) was founded in 1895 in Plovdiv. It was developed later in Geneva in a secret, anarchistic, brotherhood called "Geneva group".
Metody Patchev was a Bulgarian teacher and revolutionary, vojvoda of the Internal Macedonian-Adrianople Revolutionary Organization. According to the Macedonian historiography, he was an ethnic Macedonian.
The Strandzha Commune or Strandzha Republic was a short-lived anarchist commune. It was proclaimed during the Preobrazhenie Uprising in 1903 by Internal Macedonian Adrianople Revolutionary Organization rebels in Strandzha, in the Adrianople Vilayet of the Ottoman Empire.
Aleksandar Kicev Turundzhev was a Bulgarian revolutionary from Ottoman Macedonia and leader of the Lerin cheta of the Internal Macedonian Adrianople Revolutionary Organization. According to the post-WWII Macedonian historiography, he was an ethnic Macedonian.
Lazar Madzharov was a Bulgarian revolutionary, member of the Internal Macedonian Revolutionary Organization (IMRO) and Bulgarian teacher.
The Foreign Representation was an organizational institution of the Internal Macedonian Revolutionary Organization (IMRO). It was established in Ottoman Thessaloniki at the Congress of the IMRO in 1896. Its aim was to keep in touch the Central Committee there with the foreign representatives in Sofia, through who to inform the Bulgarian authorities about the situation in the region of Macedonia and Adrianople Thrace. The office was responsible to build and manage the illegal border crossings from Bulgaria to the Ottoman Empire for the transfer of weapons, munitions, money and literature. Its task was also to maintain contacts with the Supreme Macedonian Committee and with the Bulgarian society, and to seek support for the Liberation movement. In addition to this activity, the foreign representatives were obliged to maintain contacts with the diplomatic representatives in Bulgaria and to inform them about the situation in Macedonia and Adrianople areas. This Institution was set up in Sofia, and acted in parallel with the Central Committee until 1924. The representatives were appointed by the CC. This institution was closed at the IMRO Congress in Simitli in 1928.
