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A Brief History of the Hashtag, and Other Unusual Punctuation Marks : The New Yorker
In his new book, “ Shady Characters: The Secret Life of Punctuation, Symbols & Other Typographical Marks ,” Keith Houston reveals the stories behind esoteric punctuation marks, from the pilcrow (¶) to the manicule ( ☞ ) to the octothorpe, a.k.a. the hashtag. Many of these have their roots in ancient…