Out of many Chapter 1

196637993	30,000-15,000 B.C.E.	First humans in the Americas
196637994	13,000 B.C.E.	Global warming trend begins
196637995	10,000 B.C.E.	Clovis technology
196637996	9000 B.C.E.	Extinction of big-game animals
196637997	8000 B.C.E.	Beginning of the Archaic period
196637998	7000 B.C.E.	First cultivation of plants in the Mexican highlands
196637999	5000 B.C.E.	Athapascan migrations to America begin
196638000	4000 B.C.E.	First settled communities along the Pacific coast
196638001	3000 B.C.E.	Inupiat and Aleut migrations begin
196638002	1500-1000 B.C.E.	Maize and other Mexican crops introduced into the Southwest
196638003	1000 B.C.E.	Beginning of Adena culture; First urban communities in Mexico
196638004	250 B.C.E.	Beginning of Mogollon culture in the Southwest
196638005	200 B.C.E.-C.E. 400	Hopewell culture flourishes
196638006	650	Bow and arrow, flint hoes, and Northern Flint corn in the Northeast
196638007	775-1150	Hohokam site of Snaketown reaches its greatest extent
196638008	1000	Tobacco in use throughout North America
196638009	1150	Founding of Hopi village of Oraibi, oldest continuously occupied town in the United States
196638010	1200	High point of Mississippian and Anasazi cultures
196638011	1276	Severe drought begins in the Southwest
196638012	1300	Arrival of Athapascans in the Southwest
196638013	1451	Founding of Iroquois Confederact