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  2. Early world maps - Wikipedia

    en.wikipedia.org/wiki/Early_world_maps

    Early world maps. The earliest known world maps date to classical antiquity, the oldest examples of the 6th to 5th centuries BCE still based on the flat Earth paradigm. World maps assuming a spherical Earth first appear in the Hellenistic period. The developments of Greek geography during this time, notably by Eratosthenes and Posidonius ...

  3. T and O map - Wikipedia

    en.wikipedia.org/wiki/T_and_O_map

    A classic "T-O" map with Jerusalem at center, east toward the top, Europe at bottom left and Africa on the right. A T and O map or O–T or T–O map (orbis terrarum, orb or circle of the lands; with the letter T inside an O), also known as an Isidoran map, is a type of early world map that represents world geography as first described by the ...

  4. Ptolemy's world map - Wikipedia

    en.wikipedia.org/wiki/Ptolemy's_world_map

    The Ptolemy world map is a map of the world known to Greco-Roman societies in the 2nd century. It is based on the description contained in Ptolemy 's book Geography, written c. 150. Based on an inscription in several of the earliest surviving manuscripts, it is traditionally credited to Agathodaemon of Alexandria.

  5. Timeline of ancient history - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_ancient_history

    The date used as the end of the ancient era is arbitrary. The transition period from Classical Antiquity to the Early Middle Ages is known as Late Antiquity.Late Antiquity is a periodization used by historians to describe the transitional centuries from Classical Antiquity to the Middle Ages, in both mainland Europe and the Mediterranean world: generally from the end of the Roman Empire's ...

  6. Prime meridian - Wikipedia

    en.wikipedia.org/wiki/Prime_meridian

    A prime meridian is an arbitrarily -chosen meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°. Together, a prime meridian and its anti-meridian (the 180th meridian in a 360°-system) form a great circle. This great circle divides a spheroid, like Earth, into two hemispheres: the Eastern ...

  7. Piri Reis map - Wikipedia

    en.wikipedia.org/wiki/Piri_Reis_map

    The Piri Reis map is a world map compiled in 1513 by the Ottoman admiral and cartographer Piri Reis. Approximately one third of the map survives, housed in the Topkapı Palace in Istanbul. When rediscovered in 1929, the remaining fragment garnered international attention as it includes a partial copy of an otherwise lost map by Christopher ...

  8. Greco-Roman world - Wikipedia

    en.wikipedia.org/wiki/Greco-Roman_world

    A map of the ancient world centered on Greece. Based on the above definition, the "cores" of the Greco-Roman world can be confidently stated to have been the Italian Peninsula, Greece, Cyprus, the Iberian Peninsula, the Anatolian Peninsula (modern-day Turkey), Gaul (modern-day France), the Syrian region (modern-day Levantine countries, Central and Northern Syria, Lebanon and Palestine), Egypt ...

  9. Geologic time scale - Wikipedia

    en.wikipedia.org/wiki/Geologic_time_scale

    Principles. The geologic time scale is a way of representing deep time based on events that have occurred throughout Earth's history, a time span of about 4.54 ± 0.05 Ga (4.54 billion years). [5] It chronologically organises strata, and subsequently time, by observing fundamental changes in stratigraphy that correspond to major geological or ...