TREE OF KNOWLEDGE – BRANCHES NEW UNIVERSE 13.8 BILLION YEARS AGO PISCES–CETUS SUPERCLUSTER COMPLEX LANIAKEA SUPERCLUSTER VIRGO SUPERCLUSTER LOCAL GROUP MILKY WAY GALAXY 12.7 BILLION YEARS AGO ORION CYGNUS ARM LOCAL BUBBLE INTERSTELLAR CLOUD SOLAR SYSTEM EARTH 4.54 BILLION YEARS AGO HADEAN EON 4,567.3 to 4,000 million years ago ARCHAEN EON 4,000 to 2,500 million years ago EO-ARCHAEN ERA ECASTAN PERIOD ISUAN PERIOD PALEO-ARCHAEN ERA MESO-ARCHAEN ERA NEO-ARCHAEN ERA PROTEROZOIC EON 2,500 to 538.8 million years ago PALEO-PROTEROZOIC ERA SIDERIAN PERIOD RHYACIAN PERIOD OROSIRIAN PERIOD STATHERIAN PERIOD MESO-PROTEROZOIC ERA CALYMMIAN PERIOD ECTASIAN PERIOD STENIAN PERIOD NEO-PROTEROZOIC ERA TONIAN PERIOD CRYOGENIAN PERIOD EDIACARAN PERIOD PHANEROZOIC EON 538.8 to 0 million years ago PALEOZOIC ERA CAMBRIAN PERIOD Terreneuvian Epoch FORTUNIAN AGE STAGE 2 Cambrian Series Epoch STAGE 3 STAGE 4 Miolingian Epoch STAGE 5 DRUMIAN GUZHANGIAN Furongian Epoch PAIBIAN AGE JIANGSHANIAN AGE STAGE 10 ORDOVICIAN PERIOD EARLY ORDOVICIAN TREMADOCIAN FLOIAN MIDDLE ORDOVICIAN DAPINGIAN DARRIWILIAN LATE ORDOVICIAN SANDBIAN KATIAN HIRNANTIAN SILURIAN PERIOD LLANDOVERY EPOCH RHUDDANIAN AERONIAN TELYCHIAN WENLOCK EPOCH SHEINWOODIAN HOMERIAN LUDLOW EPOCH GORSTIAN LUDFORGIAN PRIDOLI EPOCH DEVONIAN PERIOD EARLY DEVONIAN LOCHKOVIAN PRAGIAN EMSIAN MID DEVONIAN EIFELIAN GIVETIAN LATE DEVONIAN FRASNIAN FAMENNIAN CARBONIFEROUS PERIOD Mississippian Epoch EARLY MISSISSIPPIAN-TOURNAISIAN MIDDLE MISSISSIPPIAN-VISEAN LATE MISSISSIPPIAN-SERPUKHOVIAN Pennsylvania Epoch EARLY PENNSYLVANIAN-BASHKIRIAN MID PENNSYLVANIAN-MOSCOVIAN LATE PENNSYLVANIAN-KASMOVIAN LATE PENNSYLVANIAN-GZHELIAN PERMIAN PERIOD CISURALIAN Epoch ASSELIAN SAKMARIAN ARTINSKIAN KUNGURIAN GUADALUP Epoch ROADIAN WORDIAN CAPITANIAN LOPIN Epoch WUCHIAPINGIAN CHANGHSINGIAN MESOZOIC ERA TRIASSSIC PERIOD EARLY/Lower Triassic Epoch INDUAN OLENEKIAN Middle Triassic Epoch ANISIAN LADINIAN LATE/Upper Triassic Epoch CARNIAN NORIAN RHAETIAN JURASSIC PERIOD Early Jurassic Epoch HETTANGIAN SINEMURIAN PLIENSBACHIAN TOARCIAN Middle Jurassic Epoch AALENIAN BAJOCIAN BATHONIAN CALLOVIAN Late Jurassic Epoch OXFORDIAN KIMMERIDGIAN TITHONIAN CRETACEOUS PERIOD Early Cretaceous Epoch BERRIASIAN VALANGINIAN HAUTERIVIAN BARREMIAN APTIAN ALBIAN Late Cretaceous Epoch CENOMANIAN TURONIAN CONIACIAN SANTONIAN CAMPANIAN MAASTRCHTIAN CENOZOIC ERA PALEOGENE PERIOD Paleocene Epoch DANIAN SELANDIAN THANETIAN Eocene Epoch YPRESIAN LUTETIAN BARTONIAN PRIABONIAN Oligocene Epoch RUPELIAN CHATTIAN NEOGENE PERIOD Miocene Epoch AQUITANIAN BURDIGALIAN LANGHIAN SERRAVALLIAN TORTONIAN MESSINIAN Pliocene Epoch ZANCLEAN PIACENZIAN QUATERNARY PERIOD Pliestocene Epoch GELASIAN AGE CALABRIAN AGE CHIBANIAN AGE Holocene Epoch GREENLANDIAN AGE NORTHGRIPPIAN AGE MEGHALAYAN AGE PRE-HISTORY H I S T O R Y ANCIENT HISTORY MEDIEVAL HISTORY MODERN HISTORY CONTEMPORARY HISTORY CURRENT AFFAIRS
