Ptolemy Claudius Ptolemy (; , ; ; – 160s/170s AD) was a Greco-Roman mathematician, astronomer, astrologer, geographer, and music theorist who wrote about a dozen scientific treatises, three of which were important to later Byzantine science, Byzant ...

's ''

Geography Geography (from Ancient Greek ; combining 'Earth' and 'write', literally 'Earth writing') is the study of the lands, features, inhabitants, and phenomena of Earth. Geography is an all-encompassing discipline that seeks an understanding o ...

'',Book 2, chapter 10 the Luna forest (Latin ''Luna silva'', Greek ''Louna hule'') is a geographical feature whose location is not known now with any certainty. According to Ptolemy, the forest was located on the north bank of the

Danube The Danube ( ; see also #Names and etymology, other names) is the List of rivers of Europe#Longest rivers, second-longest river in Europe, after the Volga in Russia. It flows through Central and Southeastern Europe, from the Black Forest sou ...

, downstream from the

Gabreta Forest The Gabreta Forest is an ancient forest mentioned by the Greek geographers, Strabo and Ptolemy. In the former it is termed the ''hule megale Gabreta'', or "large forest, Gabreta" (Book 7, Chapter 1, Section 5), and in the latter, ''hule Gabreta'', ...

but before the southward bend leading through today's

Hungary Hungary is a landlocked country in Central Europe. Spanning much of the Pannonian Basin, Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia and ...

. A river flowed through the forest from the north into the Danube.

References

Geography of Europe Forests of Slovakia Lost places Ptolemy {{Slovakia-geo-stub