Question: In which area of the continent of Gornergrat did the period during which the mosaic fell out of fashion begin?

the ordovician period started at a major extinction event called the cambrian-ordovician extinction events some time about 485.4 ± 1.9 ma. during the ordovician the southern continents were collected into a single continent called gondwana. gondwana started the period in the equatorial latitudes and, as the period progressed, drifted toward the south pole. early in the ordovician the continents laurentia, siberia and baltica were still independent continents (since the break-up of the supercontinent pannotia earlier), but baltica began to move toward laurentia later in the period, causing the iapetus ocean to shrink between them. also, avalonia broke free from gondwana and began to head north toward laurentia. the rheic ocean was formed as a result of this. by the end of the period, gondwana had neared or approached the pole and was largely glaciated. <SEP> The Renaissance (UK: / rɪˈneɪsəns /, US: / rɛnəˈsɑːns /) is a period in European history, covering the span between the 14th and 17th centuries. It is an extension of the Middle Ages, and is bridged by the Age of Enlightenment to modern history. It grew in fragments, with the very first traces found seemingly in Italy, coming to cover much of Europe, for some scholars marking the beginning of the modern age. <SEP> Mosaic has a long history, starting in Mesopotamia in the 3rd millennium BC. Pebble mosaics were made in Tiryns in Mycenean Greece; mosaics with patterns and pictures became widespread in classical times, both in Ancient Greece and Ancient Rome. Early Christian basilicas from the 4th century onwards were decorated with wall and ceiling mosaics. Mosaic art flourished in the Byzantine Empire from the 6th to the 15th centuries; that tradition was adopted by the Norman kingdom in Sicily in the 12th century, by eastern-influenced Venice, and among the Rus in Ukraine. Mosaic fell out of fashion in the Renaissance, though artists like Raphael continued to practise the old technique. Roman and Byzantine influence led Jews to decorate 5th and 6th century synagogues in the Middle East with floor mosaics. <SEP> southern italy was also part of the norman kingdom but great mosaics did not survive in this area except the fine mosaic pavement of the otranto cathedral from 1166, with mosaics tied into a tree of life, mostly still preserved. the scenes depict biblical characters, warrior kings, medieval beasts, allegories of the months and working activity. only fragments survived from the original mosaic decoration of amalfi's norman cathedral. the mosaic ambos in the churches of ravello prove that mosaic art was widespread in southern italy during the 11th–13th centuries. <SEP> The Gornergrat (; ) is a rocky ridge of the Pennine Alps, overlooking the Gorner Glacier south-east of Zermatt in Switzerland. Between the Gornergrat railway station () and the summit is the Kulm Hotel () hosting the new Project "Stellarium Gornergrat" and until 2010 the "Kölner Observatorium für SubMillimeter Astronomie" KOSMA and before that (until 2005) the Gornergrat Infrared Telescope. It can be reached from Zermatt by the Gornergrat rack railway (GGB), the highest open-air railway in Europe.