If you’ve ever bemoaned the fact that you share a bathroom with several family members or housemates, you’re not alone. Most New Yorkers live in apartments and most units have just a single bathroom. A hundred and fifty years ago, however, the situation was much worse. At the time, New Yorkers had just a few choices when it came to taking care of their lavatory needs and by modern standards, none of the options were appealing—visit an outhouse or use a chamber pot. Nevertheless, indoor toilets proved slow to gain popularity when they were first introduced in the second half of the nineteenth century. Initially, many residents feared the newfangled invention would bring poisonous gases into their homes, leading to illness and even death.

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