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About a century ago vs About one century ago

Both "about a century ago" and "about one century ago" are correct, but "about a century ago" is more commonly used in English. Both phrases convey the same meaning of something happening approximately 100 years in the past.

Last updated: March 19, 2024 • 925 views

This phrase is correct and commonly used in English.

"About a century ago"

This phrase is used to refer to something that happened approximately 100 years ago.

Examples:

  • The industrial revolution started about a century ago.
  • About a century ago, people traveled by horse and carriage.
  • The first World War ended about a century ago.
  • About a century ago, electricity was a luxury.
  • The discovery of penicillin was about a century ago.
  • Aug 19, 2015 ... But that canopy camouflages an astounding fact: About a century ago, Pennsylvania stood almost entirely stripped of trees. In 1895, say state ...
  • About a century ago Lord Byron, Shelley and Mrs. Shelley pulled through a season of bad weather in Switzerland by making and telling one another gruesome ...
  • Somebody made a natural swimming pool in the forest about a century ago. Oslo, Norway. (source) · 6 months ago. 8,075 points. 1,687,821 views. Add tag.
  • Until about a century ago, as many as 16 million salmon and cutthroat trout migrated every year up the Columbia River system to their breeding grounds in small ...

Alternatives:

  • around a century ago
  • approximately a century ago
  • roughly a century ago
  • about 100 years ago
  • a century ago

This phrase is correct but less commonly used in English.

"About one century ago"

This phrase is also used to refer to something that happened approximately 100 years ago.

Examples:

  • The city was founded about one century ago.
  • About one century ago, the population was much smaller.
  • The invention of the telephone was about one century ago.
  • About one century ago, people relied on steam engines for transportation.
  • The construction of the Eiffel Tower began about one century ago.
  • Apr 2, 2015 ... Since its first description about one century ago, our understanding of atrial flutter (AFL) circuits has considerably evolved. One AFL circuit can ...
  • Sep 24, 2006 ... Daniel Vorländer started his work on liquid crystals about one century ago and he may be called “father of liquid crystal chemistry”.
  • Similarly, several languages around Puget Sound underwent a process of denasalization about one century ago: Except in special speech registers, such as ...
  • They have their own Arab states from where they came into the Land of Israel about one century ago to contrast the Jewish immigration. That is the historical ...

Alternatives:

  • about a century ago
  • around one century ago
  • approximately one century ago
  • roughly one century ago
  • about 100 years ago

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