Examlex
Give the approximate bond angle for a molecule with a trigonal planar shape.
1630-1640
A decade during which significant migration to the American colonies occurred, particularly by Puritans to Massachusetts, marking a crucial development phase of early American society.
Chesapeake Region
An area surrounding the Chesapeake Bay, encompassing parts of Maryland and Virginia, significant in early American history for its tobacco cultivation and as a center of colonial society.
Labor Organization
Groups such as unions or associations that represent the interests of employees, working to improve working conditions, wages, and benefits through negotiation and collective bargaining.
1600s
The 17th century, a period marked by significant global exploration, colonization, and the beginning of the modern world system.
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