... On Tuesday, coders and developers from all over Europe will do just that when they meet as part of the Open Heritage and Open Science streams of the festival for a joint hackday, using Europeana’s dataset which we have made available as Linked Data. This is the first time that hackers will have access to the full Europeana dataset for re-use, and I am excited to see what creative apps and mash-ups are developed. Previous hackdays have resulted in apps like Artspace that would, for example, allow Europeana collections to be made available in public places such as coffee shops, libraries, schools, and hotels, or allow you to create and share your personal online guides to art. Now that this huge cultural dataset is free for all to re-use, for any purpose, we can hope to see many more such applications becoming a reality, including commercial educational applications that have not been possible before now.