Plinian eruptionPlinian eruptions or Vesuvian eruptions are volcanic eruptions marked by their similarity to the eruption of Mount Vesuvius in 79 AD, which destroyed the ancient Roman cities of Herculaneum and Pompeii. The eruption was described in a letter written by Pliny the Younger, after the death of his uncle Pliny the Elder. Plinian/Vesuvian eruptions are marked by columns of volcanic debris and hot gases ejected high into the stratosphere, the second layer of Earth's atmosphere.
LyreThe lyre ('laɪər) is a stringed musical instrument that is classified by Hornbostel–Sachs as a member of the lute-family of instruments. In organology, a lyre is considered a yoke lute, since it is a lute in which the strings are attached to a yoke that lies in the same plane as the sound table, and consists of two arms and a crossbar. The lyre has its origins in ancient history. Lyres were used in several ancient cultures surrounding the Mediterranean Sea. The earliest known examples of the lyre have been recovered at archeological sites that date to c.
Pliny the ElderGaius Plinius Secundus (AD 23/24 - AD 79), called Pliny the Elder (ˈplɪni), was a Roman author, naturalist, natural philosopher, and naval and army commander of the early Roman Empire, and a friend of the emperor Vespasian. He wrote the encyclopedic Naturalis Historia (Natural History), which became an editorial model for encyclopedias. He spent most of his spare time studying, writing, and investigating natural and geographic phenomena in the field.
Grand TourThe Grand Tour was the principally 17th- to early 19th-century custom of a traditional trip through Europe, with Italy as a key destination, undertaken by upper-class young European men of sufficient means and rank (typically accompanied by a tutor or family member) when they had come of age (about 21 years old). The custom—which flourished from about 1660 until the advent of large-scale rail transport in the 1840s and was associated with a standard itinerary—served as an educational rite of passage.
Dionysius of HalicarnassusDionysius of Halicarnassus (Διονύσιος Ἀλεξάνδρου Ἁλικαρνασσεύς, Dionúsios Alexándrou Halikarnasseús; 60 BC – after 7 BC) was a Greek historian and teacher of rhetoric, who flourished during the reign of Emperor Augustus. His literary style was atticistic – imitating Classical Attic Greek in its prime. Dionysius' opinion of the necessity of a promotion of paideia within education, from true knowledge of classical sources, endured for centuries in a form integral to the identity of the Greek elite.
Pyroclastic flowA pyroclastic flow (also known as a pyroclastic density current or a pyroclastic cloud) is a fast-moving current of hot gas and volcanic matter (collectively known as tephra) that flows along the ground away from a volcano at average speeds of (~62 mph) but is capable of reaching speeds up to (~435 mph). The gases and tephra can reach temperatures of about . Pyroclastic flows are the most deadly of all volcanic hazards and are produced as a result of certain explosive eruptions; they normally touch the ground and hurtle downhill, or spread laterally under gravity.
StraboStrabo (ˈstreɪboʊ; Στράβων Strábōn; 64 or 63 BC - 24 AD) was a Greek geographer, philosopher, and historian who lived in Asia Minor during the transitional period of the Roman Republic into the Roman Empire. Strabo was born to an affluent family from Amaseia in Pontus (in present-day Cappadocia) in around 64 BC. His family had been involved in politics since at least the reign of Mithridates V. Strabo was related to Dorylaeus on his mother's side. Several other family members, including his paternal grandfather had served Mithridates VI during the Mithridatic Wars.
