Related על כתובות 1:1

Why did they say that a virgin was married on Wednesday? For if he had a virginity claim, he would get up early to go to court. If so, let her be married on Sunday! Rather, because they could attend to all their needs for as many days of the week as possible, they decreed that he should marry her on Wednesday. From the danger and onwards, they decreed that he should marry on Tuesday, and the Sages did not object to them. If he wants to get married on Monday, they do not listen to him. If it is because of factors beyond their control, it is allowed. Why do the groom and bride separate on the first Friday night? Because he would make a bruise [when causing her to lose her virginity, and it is forbidden to cause a wound on Shabbat]. Why did they say that a widow should be married on Thursday? Because, if he married her on Sunday, the rest of the week he would leave her and go back to work; they decreed that he should marry her on Thursday, in order that he should be idle for 3 days (Thursday, Friday, Saturday), and through these idle days, it would result in him being happy with her for 3 days.