Burnet states in any case that ... Xenophanes left Ionia before Herakleitos was born.

Entity and relation annotations:
id: 0
type: entity
value: text: Burnet
labels: <Person>
id: 1
type: entity
value: text: Xenophanes
labels: <Person>
id: 2
type: entity
value: text: Ionia
labels: <Person>
id: 3
type: entity
value: text: Herakleitos
labels: <Person>