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Primary sourceBook1909

The Heart of the Antarctic

Ernest Shackleton · 1909

Shackleton's 1909 memoir of the Nimrod Expedition, describing the march that came within 97 miles of the South Pole before turning back.

Shackleton's own memoir explaining his famous decision to turn back near the Pole during the Nimrod Expedition.

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What it is

The Heart of the Antarctic is a book written by Ernest Shackleton in 1909, recounting the Nimrod Expedition of 1907–1909. It describes the overland journey toward the South Pole, which reached a point further south than anyone had gone before, before the party turned back short of the Pole itself.

Why it matters

This account reveals Shackleton's own explanation of one of exploration's most difficult decisions: choosing to turn back rather than risk his men's lives by pressing on to the Pole. It is an important primary source for understanding his judgement and leadership before his more famous Endurance expedition.

Look closer

  • Why do you think Shackleton decided to turn back so close to his goal?
  • How does Shackleton describe his own decision-making in this passage?
  • What does this book leave out that a modern historian might want to know?

This book is part of the curated material that grounds the AI version of Ernest Shackleton on Humy.ai — when students ask about related events, the AI can quote it and cite it.

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