Answer:
Marks a major social, economic, or political shift.
Step-by-step explanation:
A turning point describes a moment in history where a major change happens. This change is usually decisive in nature, and forever alters the events that come after it. The concept of turning point is usually applied to positive social, economic or political changes. For example, the invention of the printing press can be seen as a turning point in the cultural history of Europe, as it positively changed society in a massive way.