Macedonia (as a current geographical term) refers to a region of the Balkan peninsula in south-eastern Europe, covering some 60,000 or 70,000 square kilometers.
Although the region's borders are not officially defined by any international organization or state, in some contexts, the territory appears to correspond to the basins of (from west to east) the Haliacmon (Aliákmonas), Vardar / Axios and Struma / Strymónas rivers, and the plains around Thessaloniki and Serres.

In a historic context, the term Macedonia was used in various ways.
Macedonia was not an administrative division of the Ottoman Empire; its entire territory was part of the beylerbeylik of Rumelia.
The geographer H. R. Wilkinson suggests that the region "defies definition" but that many mappers agree "on its general location".
Macedonia was well enough defined in 1897 for Gladstone to propose "Macedonia for the Macedonians"; philhellenes argued that the phrase could not be used by a man of impartiallity, while Turcophiles asserted that there are six different kinds of Macedonians, and only Turkish rule could prevail total anarchy in the region.
The Balkan nations began to proclaim their rights to it after the Treaty of San Stefano in 1878 and its revision at the Congress of Berlin.

Many ethnographic maps were produced in this period of controversy; these differ primarily in the areas given to each nationality within Macedonia.
This was in part a result of the choice of definition: an inhabitant of Macedonia might well have different nationalities depending on whether the basis of classification was denomination, descent, language, self-identification or personal choice.
In addition, the Ottoman census, taken on the basis of religion, was misquoted by all sides; descent, or "race", was largely conjectural; inhabitants of Macedonia might speak a different language at the market and at home, and the same Slavic dialect might be called Serbian "with Bulgarian influences", Macedonian, or West-Bulgarian.

These maps also differed somewhat in the boundaries given to Macedonia.
Its only inarguable limits were the Aegean Sea and the Serbian and Bulgarian frontiers (as of 1885); where it bordered Old Serbia, Albania, and Thrace (all parts of Ottoman Rumelia) was debatable.

The Greek ethnographer Nicolaides, the Austrian Meinhard, and the Bulgarian Kǎnčev placed the northern boundary of Macedonia at the Šar Mountains and the Crna hills, as had scholars before 1878.
The Serb Gopčevič preferred a line much further south, assigning the entire region from Skopje to Strumica to "Old Serbia"; and some later Greek geographers have defined a more restricted Macedonia.
In addition, maps might vary in smaller details: as to whether this town or that was Macedonian.
One Italian map included Prizren, where Nicolaides and Meinhard had drawn the boundary just south of it.
On the south and west, Grevena, Korçë, and Konitsa varied from map to map; on the east, the usual line is the lower Mesta / Nestos river and then north or northwest, but one German geographer takes the line so far west as to exclude Bansko and Nevrokop / Gotse Delchev.
Macedonia (as a current geographical term) refers to a region of the Balkan peninsula in south-eastern Europe, covering some 60,000 or 70,000 square kilometers. Although the region's borders are not officially defined by any international organization or state, in some contexts, the territory appears to correspond to the basins of (from west to east) the Haliacmon (Aliákmonas), Vardar / Axios and Struma / Strymónas rivers, and the plains around Thessaloniki and Serres.
In a historic context, the term Macedonia was used in various ways. Macedonia was not an administrative division of the Ottoman Empire; its entire territory was part of the beylerbeylik of Rumelia. The geographer H. R. Wilkinson suggests that the region "defies definition" but that many mappers agree "on its general location". Macedonia was well enough defined in 1897 for Gladstone to propose "Macedonia for the Macedonians"; philhellenes argued that the phrase could not be used by a man of impartiallity, while Turcophiles asserted that there are six different kinds of Macedonians, and only Turkish rule could prevail total anarchy in the region. The Balkan nations began to proclaim their rights to it after the Treaty of San Stefano in 1878 and its revision at the Congress of Berlin.
Many ethnographic maps were produced in this period of controversy; these differ primarily in the areas given to each nationality within Macedonia. This was in part a result of the choice of definition: an inhabitant of Macedonia might well have different nationalities depending on whether the basis of classification was denomination, descent, language, self-identification or personal choice. In addition, the Ottoman census, taken on the basis of religion, was misquoted by all sides; descent, or "race", was largely conjectural; inhabitants of Macedonia might speak a different language at the market and at home, and the same Slavic dialect might be called Serbian "with Bulgarian influences", Macedonian, or West-Bulgarian.
These maps also differed somewhat in the boundaries given to Macedonia. Its only inarguable limits were the Aegean Sea and the Serbian and Bulgarian frontiers (as of 1885); where it bordered Old Serbia, Albania, and Thrace (all parts of Ottoman Rumelia) was debatable.
The Greek ethnographer Nicolaides, the Austrian Meinhard, and the Bulgarian Kǎnčev placed the northern boundary of Macedonia at the Šar Mountains and the Crna hills, as had scholars before 1878. The Serb Gopčevič preferred a line much further south, assigning the entire region from Skopje to Strumica to "Old Serbia"; and some later Greek geographers have defined a more restricted Macedonia. In addition, maps might vary in smaller details: as to whether this town or that was Macedonian. One Italian map included Prizren, where Nicolaides and Meinhard had drawn the boundary just south of it. On the south and west, Grevena, Korçë, and Konitsa varied from map to map; on the east, the usual line is the lower Mesta / Nestos river and then north or northwest, but one German geographer takes the line so far west as to exclude Bansko and Nevrokop / Gotse Delchev.
Macedonia (terminology)