Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Lake Baikal' has mentioned 'Ancient lake' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Baikal's age is estimated at 25xe2x80x9330xc2xa0million years, making it the most ancient lake in geological history. | WIKI |
| Similar to another ancient lake, Tanganyika, Baikal is a center for ostracod diversity. | WIKI |