Gypsies
Communists
Social Democrats
Other Political Opponents
Homosexuals
Seventh Day Adventists
Advantages: Primary sources directly address your topic and often provide information that is unavailable elsewhere. For example, the questions you compose for an interview or a survey will likely target your unique interest in the topic. Similarly, to test a particular hypothesis, you can design your own experiment.
Disadvantages: Some primary sources, such as eyewitness accounts, may be too close to the subject, lacking a critical distance. Others, such as interviews, surveys, and experiments, are time consuming to prepare, administer, and analyze. Finally, unless you have been trained in accepted methodologies, your own primary research in certain fields of study may not be recognized as valid.
It consolidated the power of the landed nobility and peasants suffered. Expencive, handcrafting goods were now mass-producted and new social classed emerged. European dominance was now challenged by economic cepititors from around the world.
Not: workers moved to surburban enclaves, which changed the way schools and social lives are organized
B figures are carved in high relief with deep undercutting