<span>The Jazz Singer (1927) is historically significant because it featured several scenes with synchronous dialogue. Synchronous sounds refer to any sounds whose origin can be seen on screen. So, if people are talking, you will see where the words are coming from. This is something that hadn't been done prior to the filming of The Jazz Singer, which was revolutionary. </span>
A quicklist is a prewriting technique which helps a writer to pick a topic from multiple ones the writer thinks of. The answer is: <span>a prewriting technique to help choose a topic</span>
