Quiz: Remember the definition of mal de mer?
town (township), Middlesex county, northeastern Massachusetts, U.S. Located just southeast of Lowell and 21 miles (34 km) north of Boston, the town occupies a marshy lowland between the Concord and Merrimack rivers. Farmers from neighbouring Billerica settled there during the early 18th century, and a sawmill was established. Commercial flower growing and leather tanning were major economic activities in the 19th and early 20th centuries. A large state-sponsored almshouse was opened in 1854.