Saturday 21st February 2026
    Difficulty: Very hard

    Philanthropists (#1,191)

    Photo by <a href="https://unsplash.com/@sharonmccutcheon?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Alexander Grey</a>
    Photo by Alexander Grey (Unsplash)

    1. How many libraries did philanthropist Andrew Carnegie open between 1886 and 1919, at a cost of $55 million (or about $1.6 billion in today’s dollars)?

    2. Which of the following has NOT signed "The Giving Pledge", a commitment to donate the majority of their wealth to charitable causes during their lifetimes or in their wills?

    3. According to the Forbes 2025 list, who is "America’s Most Generous Philanthropist", measured by amount given as a percentage of net worth?

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