The colonization project that became known as the Darien Scheme or Darien Disaster was an unsuccessful attempt by the Kingdom of Scotland to become a world trading nation by establishing a colony called "Caledonia" on the Isthmus of Panama on the Gulf of Darién in the late 1690s. From the outset, the undertaking was beset by poor planning and provision, weak leadership, lack of demand for trade goods, devastating epidemics of disease and increasing shortage of food; it was finally abandoned after a siege by Spanish forces in April 1700. As the Darien company was backed by about a quarter of the money circulating in Scotland, its failure left the nobles and landowners—who had suffered a run of bad harvests—almost completely ruined and was an important factor in weakening their resistance to the Act of Union (finally consummated in 1707). Although the scheme failed, it has been seen as marking the beginning of the country's transformation into a modern nation oriented toward business.