Historical building timber (IMAGE) Frontiers Caption Example of type of buildings the felling dates are obtained from: Roof truss of the Chapelle Saint-Denis in Marmoutier in Alsace, France, from the 16th century. Credit Willy Tegel Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.