Lesson 7-Spring Sowing III. The Potato Comes to Ireland By 1840, the countrys population had swelled from less than three million in the early 1500's to a staggering eight million people -largely thanks to the potato. Some men and women tried to warn everyone that it was dangerous for so many people in one place to be dependent on just one crop. Unfortunately, no one listened to their Warnings W BT L E The end of the potato comes to irelandLesson 7—Spring Sowing W B T L E By 1840, the country’s population had swelled— from less than three million in the early 1500's to a staggering eight million people—largely thanks to the potato. Some men and women tried to warn everyone that it was dangerous for so many people in one place to be dependent on just one crop. Unfortunately, no one listened to their warnings. The end of The Potato Comes to Ireland. III. The Potato Comes to Ireland