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Houghton Mifflin Harcourt

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Houghton Mifflin

1880-2007

Houghton Mifflin logo

Houghton Mifflin Harcourt

2007-2012

Houghton-mifflin-logo1

Upon purchasing Harcourt, the company was renamed Houghton Mifflin Harcourt.

2012-present

Houghtonmifflin2012