Like, that much time ago?
Three years ago, it was the Rolex ref. 6062 "Bao Dai."
CASTRO: Are you forgetting what you said two minutes ago?
The Earth itself is believed to have formed about 4.6 billion years ago.
Man arrived in Australia 48,000-50,000 years ago; the megafauna died out 46,000 years ago.
Europe’s ice blanket melted from central Germany 17,000 years ago, and from Sweden 13,000 years ago.
The oldest known tools date from 3.3 million years ago; geologically, this is the middle of the Pliocene Epoch (about 5.3 million to 2.6 million years ago).
In northeastern India, orogeny began some 1.7 billion years ago and culminated in a continental collision 950 million years ago in the present Singhbhum area.
Eocene Epoch, second of three major worldwide divisions of the Paleogene Period (66 million to 23 million years ago) that began 56 million years ago and ended 33.9 million years ago.
"They were infected three weeks ago, four weeks ago, five weeks ago, six weeks ago, but they had the virus, they developed the antibodies and they are now recovered."
It is generally accepted that Lake Erie reached its present level about 10,000 years ago, Lake Ontario about 7,000 years ago, and Lakes Huron, Michigan, and Superior some 3,000 years ago.
"It formed about 450 million years ago, got blasted off Mars by an asteroid or comet roughly 600,000-700,000 years ago, and then landed on Earth; we don't know precisely when but perhaps 1,000 years ago.
In general it seems that the Nebraskan ice sheet covered North America perhaps 2,000,000 years ago, the Kansan sheet 1,250,000 years ago, the Illinoisan sheet 500,000 years ago, and the Wisconsin sheet 100,000 years ago.
The researchers looked at three documented warm periods, the Holocene thermal maximum, which occurred 5,000 to 9,000 years ago, the last interglacial, which occurred 116,000 to 129,000 years ago, and the mid-Pliocene warm period, which occurred 3m to 3.3 m years ago.
The Pleistocene is subdivided into four ages and their corresponding rock units: the Gelasian (2.6 million to 1.8 million years ago), the Calabrian (1.8 million to 780,000 years ago), the Ionian (780,000 to 126,000 years ago), and the Tarantian (126,000 to 11,700 years ago).
The Cambrian Period is divided into four stratigraphic series: the Terreneuvian Series (541 million to 521 million years ago), Series 2 (521 million to 509 million years ago), Series 3 (509 million to 497 million years ago), and the Furongian Series (497 million to 485.4 million years ago).
The Tertiary has five principal subdivisions, called epochs, which from oldest to youngest are the Paleocene (66 million to 55.8 million years ago), Eocene (55.8 million to 33.9 million years ago), Oligocene (33.9 million to 23 million years ago), Miocene (23 million to 5.3 million years ago), and Pliocene (5.3 million to 2.6 million years ago).
Its formation is a consequence of the breakup, which began about 180 million years ago, of the southern supercontinent Gondwana (or Gondwanaland); by the movement to the northeast of the Indian subcontinent (beginning about 125 million years ago), which began colliding with Eurasia about 50 million years ago; and by the western movement of Africa and separation of Australia from Antarctica some 53 million years ago.
The major divisions of the Paleozoic Era, from oldest to youngest, are the Cambrian (541 million to 485.4 million years ago), Ordovician (485.4 million to 443.8 million years ago), Silurian (443.8 million to 419.2 million years ago), Devonian (419.2 million to 358.9 million years ago), Carboniferous (358.9 million to 298.9 million years ago), and Permian (298.9 million to 252.2 million years ago) periods.
The Mississippian Subsystem is made up of the Tournaisian (deposited 358.9 to 346.7 million years ago), Viséan (346.7 to 330.9 million years ago), and Serpukhovian (330.9 to 323.2 million years ago) stages, whereas the Bashkirian (323.2 to 315.2 million years ago), Moscovian (315.2 to 307 million years ago), Kasimovian (307 to 303.7 million years ago), and Gzhelian (303.7 to 298.9 million years ago) stages make up the Pennsylvanian Subsystem.
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The Mississippian Subsystem is made up of the Tournaisian deposited 3589 to 3467 million years ago Viséan 3467 to 3309 million years ago and Serpukhovian 3309 to 3232 million years ago stages whereas the Bashkirian 3232 to 3152 million years ago Moscovian 3152 to 307 million years ago Kasimovian 307 to 3037 million years ago and Gzhelian 3037 to 2989 million years ago stages make up the Pennsylvanian Subsystem