The aim of the "TimeLine: Cross-Document Event Ordering" Task at SemEval 2015 was to build timelines from written news in English. More specifically, the goal was to order on a timeline all the events in which a target entity is involved, focusing mainly on cross-document event coreference resolution and cross-document temporal relation extraction.

All the data provided to task participants are freely available from the task website.

TimeLine 2015 website