Its B Europeans found new products during the crusades
The Farmer´s Law is a Byzantine legal code created in the 8th century under the rule of Emperor Justinian. It aimed to protect the farmer´s property and established penalties for wrongdoings commited by villagers. Its provisions concerned damages to the property, taxation, and different kinds of theft. The village was considered as a fiscal unit and the payment of a communal tax was required by all members of the community.
The first Ku Klux Klan was a right-wing extremist organization which emerged in the Southern States during the Reconstruction era, from the 1860s decade until the late 1970s. They fought for the purification of the American society, they were white supremacists and conducted attacks against African American leaders and civilian population. They were characterized by wearing white gowns and conical hats, like the man in the image. They acted at a local level but many groups in diverse locations supported the movement.
The second KKK flourished in the early and mid 1920s. It was a more formal organization, with registered members and structures at the state and national levels. They used the power of mass media, to perform marketing activities aiming to mythologize the first KKK. Supremacy was promoted not just over the black population, but they also opposed Jewish and Catholics (as the movement was related mainly to Protestan communitiees). They used the white costume again as a symbol.
One of the reasons that people supported
(or at least didn't oppose - many people did not have strong feelings about the war, much like about today's US interventions in the Middle East)
The Vietnam war was the general anti-communist sentiment at the time. People felt threatened by communism and were afraid it could eventually reach the US and they would then loose their personal freedom.
So they believed communism must be contained - and the war was a step towards containing the war.