For more on this topic, the book Fields of Blood (https://en.wikipedia.org/wiki/Fields_of_Blood https://en.wikipedia.org/wiki/Fields_of_Blood) has a couple of c

For more on this topic, the book Fields of Blood (https://en.wikipedia.org/wiki/Fields_of_Blood https://en.wikipedia.org/wiki/Fields_of_Blood) has a couple of chapters on this. It's a fascinating history.