The Philosophical Transactions of the Royal Society, or Phil. Trans., is a scientific journal published by the Royal Society.Begun in 1665, it is the oldest scientific journal printed in the English-speaking world and the second oldest in the world, after the French Journal des sçavans. It is still published, making it the world's longest running scientific journal. The use of the word "philosophical" in the title derives from the phrase "natural philosophy", which was the equivalent of what we would now generically call "science" (and hence the highest degree in science is also called the Doctor of Philosophy).
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