I forgot to include these last two sentences. Thank you very much for your last corrections!

1) The guilds controlled the proper quality of goods, laid down the rules concerning apprenticeship and organised fairs where their members sold their produce. Moreover, they prepared biblical plays to be performed in various places of the town on particular feast days.
2) He introduced a system of law which became known as Common Law since it was used everywhere by travelling judges. This system of law was based on custom, comparisons, previous cases and previous decisions.

concerning apprenticeship, and organized..

known as Common Law because it was used...
previous cases, and previous decisions.

1) The guilds played a crucial role in controlling the quality of goods, regulating apprenticeship rules, and organizing trade fairs. Additionally, they also prepared biblical plays to be performed on special occasions throughout the town.

To get more information about guilds and their activities during that time, you can conduct a thorough research using reliable sources such as history books, academic articles, and online databases. Look for information related to medieval guilds, their functions, and their impact on the local economy and society. Explore different perspectives and sources to get a comprehensive understanding of this historical topic.

2) Common Law is a legal system introduced by a certain individual in which traveling judges used the same set of laws everywhere. This system of law was derived from customs, comparisons, previous cases, and earlier decisions.

To gain a deeper understanding of Common Law and its development, you can start by researching its origins and the individual who introduced it. Look for resources that explain the historical context in which Common Law emerged and how it evolved over time. Reading legal texts, historical accounts, and scholarly articles can provide you with the necessary background knowledge. Additionally, you can explore specific examples or landmark cases that helped shape the principles and precedents of Common Law. Remember to critically assess and cross-reference the information you find to ensure accuracy and to get a well-rounded understanding of the topic.