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had pioneered

  • past perfect
    of pioneer.
    pioneer
    noun
    a person who is among those who first enter or settle a region, thus opening it for occupation and development by others.

Example Sentences

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Researchers at MIT and Stanford had pioneered work on carbon capture and enhanced oil recovery.

From Salon Jun. 26, 2026

Although British New Wave bands had pioneered the use of the music video as an art form, Michael Jackson was one of the first Black artists to be given the chance to do the same.

From The Wall Street Journal Feb. 1, 2026

In the 1990s, England and Wales, under pressure over coerced confessions, had pioneered an interrogation method that forbids lying and relies on open-ended questioning.

From Los Angeles Times Dec. 23, 2024

The move was followed by an unusual drop in subscribers that startled investors and intensified concerns that Netflix was losing dominance over the industry it had pioneered.

From BBC Apr. 18, 2024

He believed the Rad Lab was destined to face inevitable decline as physics progressed and competitive laboratories emerged—many of them built on the model Lawrence had pioneered.

From "Big Science" by Michael Hiltzik

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