1634

Landing of the Arc and Dove; founding of the Colony of Maryland

1695

Establishment of Prince Georges County (includes future Montgomery County and Sandy Spring). Area opened to land speculators

1713-28

John Bradford, Richard Snowden, Charles Beall, Thomas Bordley, James Brooke, and others obtain land patents on large parcels of the future Sandy Spring area

c.1724

An overseer for Richard Snowden builds log core of the future home Greenwood north of present-day Brookeville, establishing Greenwood as Sandy Spring's and Montgomery County's oldest still-standing home

1727

James Brooke buys 889 acres of Charley Forrest from John Bradford.

1728

James and Deborah Snowden Brooke build the westernmost framed home south of Canada the start of Quaker Sandy Spring

1729

John Thomas and wife Elizabeth Snowden, Deborah's sister, build Cherry Grove on 549 acres of "Snowden's Manor Enlarged"

c.1737

James Brooke builds a grist mill and biscuit factory on the Hawlings River north of present Gold Mine Road. He, father-in-law Richard Snowden, and the Thomases add to their landholdings

1742

John Thomas builds Clifton, oldest largely-intact surviving home in the eastern piedmont