Final answer:
The student's query refers to events grouped in Category 3, which could entail stages of human lifespan or development, but the specific events cannot be provided without further context from the chapters mentioned.
Step-by-step explanation:
The student's question seems to be referencing a list of events that would be categorized under a topic likely related to the human lifespan or development, possibly from a textbook. Without the exact list of events or the specific context provided in the chronology references, it is impossible to accurately answer the question. To list events grouped in Category 3, one would need to consult the chapter or sections mentioned, specifically sections 3.1 through 3.5, 5.2, 6.2, 14.1, 14.3, and 14.4 in the materials provided. Typically, such a list might include events such as birth, infancy, childhood, adolescence, adulthood, middle age, and elderhood as key stages of human development.