| A | B |
| Charles Mound | the highest point in Illinois |
| Fort Defiance Point | Lowest point in Illinois |
| glaciers | Illinois land was shaped by these |
| "the men" | Indian meaning of the word "Illini" |
| Piasa Bird | monster painted on the bluffs of the Mississippi River by early Indians |
| Hopewell | first group of people living in Illinois |
| Mound Builders | People of the Mississippian Period were called this |
| Cahokia | Largest city of the Mississippian Period |
| 12 Tribes | these made up the Illini Alliance |
| Iroquois | the Illini lost much of their land to this group of Indians |
| Marquette and Jolliet | the first two white explorers to come to Illinois |
| Kaskaskia | Mission built in 1675 by Father Marquette |
| LaSalle and Tonti | Persons in charge of building French forts in Illinois |
| Fort Crevecoeur | First fort built near Peoria |
| Jean Baptist Point Du Sable | Founder of Chicago |
| French and Indian War | Winning this gave England control of Illinois |