Somme (river) invasion fleet of William the Conqueror assembled in the Bay of the Somme, at Saint-Valery-sur-Somme. The river also featured in the 1346 withdrawal of Edward III of England's army, which forded the river at the Battle of Blanchetaque during the campaign, which culminated in the Battle of Crécy. Crossing the river also featured prominently in the campaign which led to the Battle of Agincourt in 1415. In 1636, a Spanish army led by Thomas Francis, prince of Carignan, crossed the Somme defeating a French army during the Thirty Years War threatening Paris. Most famously, the Battle of the Somme, during
Cross River gorilla including the expansion of farmland, human occupation, lack of accessible habitat and the sparsity of suitable or favorable habitat. Due to this isolation, gene flow has begun to slow and sub-populations are suffering from a lack of gene diversity which could mean a long term issue. A study conducted by researchers found that gene flow accompanied the divergence of western lowland and Cross River gorillas until just 400 or so years ago, which rather supports a scenario in which intensifying human activities may have increased the isolation of these ape populations. The recent decrease in the Cross River population is