The idea that they were less reliable in practice is false. It was spread by sex educators trying to scare kids away from sex.
Observe the TFR in France starting in the late 1800s
Pre-moderns knew how to not conceive
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The idea that they were less reliable in practice is false. It was spread by sex educators trying to scare kids away from sex.
Observe the TFR in France starting in the late 1800s
Pre-moderns knew how to not conceive