加文·孟席斯，英国皇家海军退伍军官。1937年生于中国，两年后因第二次世界大战爆发始离开。1953年加入英国皇家海军，1957年在“钻石”号驱逐舰上服役于地中海海域。1959年，在“纽芬兰”号上担任航海指挥官，服役于远东海域。1960年调到“决心”号战略导弹核潜艇，任作战官。1968年担任“鳁鲸”号潜艇艇长，被授予海军中校，执行全球航行访问任务。在皇家海军的服役期间，他曾率舰沿着世界上伟大的航海家哥伦布、迪亚斯、卡布拉尔和达·伽马的航线行遍世界。退伍之后，他曾多次走访中国与亚洲各国，专注于中国明代郑和航海的调查与研究。

加文·孟席斯先生已婚，有二女，现寓居于伦敦北部。

On March 8, 1421, the largest fleet the world had ever seen set sail from China. Its mission was "to proceed all the way to the ends of the earth to collect tribute from the barbarians beyond the seas" and unite the whole world in Confucian harmony.</p>

When it returned in October 1423, the emperor had fallen, leaving China in political and economic chaos. The great ships were left to rot at their moorings and the records of their journeys were destroyed. Lost in China's long, self-imposed isolation that followed was the knowledge that Chinese ships had reached America seventy years before Columbus and had circumnavigated the globe a century before Magellan. Also concealed was how the Chinese colonized America before the Europeans and transplanted in America and other countries the principal economic crops that have fed and clothed the world.</p>

Unveiling incontrovertible evidence of these astonishing voyages, 1421 rewrites our understanding of history. Our knowledge of world exploration as it has been commonly accepted for centuries must now be reconceived due to this landmark work of historical investigation.</p>