Is it reasonable to assume that the following events all occurred within five years of the beginning of LOCH?

1. East Heretic Wong Yerk See explains to Central Divinity Wong Chung Yeung how Ancient Tomb Sect Founder Lam Chiu Ying pulled off the trick of writing on stone with her finger.

2. The First Mt. Hua Sword Tournament.

3. Wong Chung Yeung and Chow Bak Tung's visit to Dali (and the Ying Goo affair).

4. Death of Wong Chung Yeung.

Did these events happen within five years before the birth of Gwok Jing and Yeung Hong, or were they farther back in the timeline?