To: Lane3 who wrote (10768 ) 2/3/2006 10:54:28 PM From: KLP Respond to of 541735 Thanks. I too find the conversation interesting. The top timeline I found below certainly shows other ice ages, before people came (or many anyhow)...well before recorded history. Just the cores of the ice plugs I would guess. There were some reports a few weeks ago stating that the trees were the largest producers of greenhouse gases, if I remember right. The timeline certainly puts into perspective the last 1,000 years on the chart of space/time. timeline for iceages, and civilization orionsarm.com Pre Terragen SpaceAge Timeline note: years b.c. /b.c.e. (before common era) and a.d. /c.e. (common era) 4.56 to 3.85 billion years ago - The Hadean Era. [see also Pre- terragen expansion timeline] 3.85 to 2.5 billion - The Archaean Era. [see also Pre- terragen expansion timeline] 2.5 billion to 544 million - The Proterozoic Era. [see also Pre- terragen expansion timeline] 544 to 250 million - The Paleozoic Era. [see also Pre- terragen expansion timeline - Paleozoic] 250 to 65.5 million - The Mesozoic Era. [see also Pre- terragen expansion timeline - Mesozoic] 65.5 million - The beginning of the Cenozoic Era. [see also Pre- terragen expansion timeline - Tertiary] 5 to 1 million - The existence of various species of Australopithecines. 2.2 to 1.6 million - Homo habilis exists on Earth. 1.6 million to 500,000 - Homo erectus exists on Earth. 850,000 - Homo erectus appears in Europe. It is the earliest Human presence in Europe known. 500,000 - Homo sapiens appears. 340 to 330,000 - An ice age. 330 to 270,000 - An interglacial period. 270 to 230,000 - An ice age. 230 to 160,000 - An interglacial period. 160 to 130,000 - An ice age. 130 to 35,000 - The last interglacial period before the present. 125,000 - Homo sapiens sapiens appears. 120,000 - A volcano on El Hierro in the Canary Islands suffers an earthquake, and its entire seaward flank falls into the ocean, generating a super-tsunami. By the time this wave reaches the east coast of North America, is remains 40 to 50 meters (130 to 160 feet) in height, devastating the coastlands. 100,000 to 33,000 - Homo neanderthalensis exists on Earth. 73,000 - The Toba eruption, a super-volcano which buries most of India under ash and causes a six year global volcanic winter, followed by a millennia-long "little ice age". 60,000 - Homo neanderthalensis appears in Europe. 35 to 11,600 - The last ice age. 30 to 25,000 - A foraging society appears in Austria and surrounding Europe, marked by the Woman of Willendorf figurine. 25 to 12,000 - Goddess carvings, sculptures, etc. appear throughout the world in conjunction with Human societies. - These are the famous "Venus" sculptures. 21 to 18,000 - Height of the last ice age. Oceans are at their lowest at some 85 meters below present day levels. 18 to 10,000 - Cave paintings appear throughout Europe. 11,600 - The Young Dryas cold snap. 11,400 - The Vela supernova is visible from Earth as a magnitude -10 object. 10,000 - The first settled agricultural villages appear in eastern Europe and the Middle East. 7,000 - The last land areas in the Bahamas not above the ocean in the current era are inundated. 6500 to 5650 - Catal Hulyuk. 6,000 - The city-state of Jericho is established. 5000 to 2700 - Yangshao culture in China. 5000 - Agriculture begins in Mexico. 4000 - The Vra culture in Europe. 3500 to 2340 - Sumerian civilization. 3500 to 2000 - Longsham civilization in China. 3200 to 30 - Egyptian civilization. 3100 to 2300 - The first constructional phase of Stonehenge. 3000 to 1900 - Harappan civilization. 2340 to 1900 - Akkadian civilization. 2250 - Copper working appears in Europe. 2205 to 1818 - Xia Dynasty in China. 2100 to 2000 - The second constructional phase of Stonehenge. 2000 to 1550 - The third constructional phase of Stonehenge. 2000 to 1300 - Minoan civilization. 2000 to 1100 - The Mycenaean Era of Greek civilization. 2000 - The Palace at Knossos is constructed. 2000 - The first Peruvian ceremonial centers appear. 1900 to 1100 - Babylonian civilization. 1850 - The Celto-Ligurian culture. 1600 - Bronze working appears in Europe. 1523 to 1027 - The Shang Dynasty in China. 1500 to 700 - The Poverty Point culture in North America. 1500 to 300 - Olmec civilization. 1200 - The Urnfield Celts. 1100 to 800 - The Dorian Invasion of Greece brings about the Greek Dark Age. 1100 - The fourth and final constructional phase of Stonehenge. 900 - The Chavin people unite Peru. 850 - The possible birth time of Homer. 800 to 500 - The Archaic Period of Greek civilization. 800 - The Olmecs unite Mesoamerica. 776 - The first Olympic Games. 753 - The traditional date for the founding of Rome as agricultural settlements on the Palatine hill. 616 to 509 - The Etruscan kings rule Rome. 600 - Iron working appears in Europe. 600 - The beginnings of Greek philosophy. 594 to 508 - The development of Athenian democracy. 550 to 323 - The Persian Empire. 509 to 27 - The Roman Republic. 500 to 300 - The Hellenic Period, otherwise known as the time of classical Greek culture. 500 to 275 - Conquest of the Italian Peninsula by Rome, and the beginning of the Roman road system. 499 to 479 - The Persian Wars. 431 to 404 - The Peloponnesian War. 390 - Rome is sacked by the Gauls, but rebuilt. 336 to 323 - The conquests of Alexander the Great. 300 to 50 b.c.e. - The Hellenistic Period of Greek culture. 264 to 241 b.c.e. - The first Punic War. 218 to 202 b.c.e. - The second Punic War. 146 b.c.e. - The third Punic War and the conquest of Greece by Rome. 133 to 31 b.c.e. - Civil wars and the end of the Roman Republic. 27 to 312 c.e. - The Roman Empire 300 to 1300 c.e. - Mayan civilization. 312 c.e. to 1453 - The Byzantine Empire. 378 c.e. to 476 c.e. - Decline of Western Roman Empire. 410 c.e. - Rome is sacked by the Visigoths. The remainder of the Empire is now referred to as the Byzantine Empire. 450 c.e. - The Anglo-Saxons invade England. 597 c.e. - Saint Augustine begins his missionary work in England. 711 c.e. to 715 c.e. - Moslem conquest of Spain. 768 c.e. to 814 c.e. - The Reign of Charlemagne. 793 c.e. - The earliest documented Norse raids against England.1066 - The Battle of Hastings. 1095 to 1291 - The Crusades. 1164 to 1216 - The reign of King John of England. 1347 to 1351 - The Black Death ravages Europe. 1350 to 1918 - The Ottoman Empire. 1400 to 1550 - The Renaissance. 1488 - Bartolomeu Dias rounds the Cape of Good Hope. 1492 - The Spanish Inquisition. 1492 - Christopher Columbus discovers the Americas. 1500 - Pedro Cabral discovers Brazil. 1500 to 1598 - The Reformation. 1519 to 1522 - The first circumnavigation of the globe, begun by Magellan and completed by Sebastian del Cano. 1519 to 1538 - Hernan Cortes conquers Mexico. 1540 to 1542 - Coronado explores the southwestern region of the future United States. 1585 - The first English colony in North America is established on Roanoke Island. 1600 - The English East India Company is founded. 1606 - Willem Janszoon discovers Australia. 1923 - The Republic of Turkey is founded. 1932 - The Kingdom of Saudi Arabia is founded. *************ngdc.noaa.gov gsfc.nasa.gov