We argue that collection access through events can remedy these bottlenecks as events provide the context that can link a variety of objects together, providing a more comprehensive overview than facets. To facilitate cross-collection access, we aim to develop an event thesaurus with which different collections can align their internal thesauri. [...] We envision two types of exploration: object-driven and event-driven exploration. Object-driven exploration involves a search or browsing activity where the user starts by selecting an object from the collections and subsequently finds new objects and events through the relations with the first object. In the event-driven exploration, the user starts by selecting an event and builds a sequence of related events and objects. As a user may hop between events and objects on his or her search through the collections the object-driven and event-driven explorations alternate.