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.

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.

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.

《1421中国发现世界》：明成祖永乐十九年正月三十日．在总兵太监郑和的带领下，历史上最宏伟壮观的船队从中国出发，其中不乏150米长的巨舰。中国船队如同海上仙山，阵容最浩大时各种舰船达100余艘，各类人员28000余名。其出航的目的为“宣德化而柔远人”，这次旅行历经两年．并环游地球一周。当他们回航时，盛极一时的明成祖朱棣早已体衰势微，中国也走上锁国道路。巨船任其腐朽，远航的记载也遭到毁弃。从此再也没人知道那段历史的真相。《1421中国发现世界》作者的研究结论是：早于哥伦布70年．中国人发现了美洲大陆，并且在麦哲伦的100年前便已环游地球。除此之外．中国人更是在库克船长的350年前就发现了澳洲与南极洲．并且领先欧洲人，300年解决了经度测量的问题。作者加文·孟席斯(GavlrI Merlzles)花了14年时间研究这段中国船队惊人的传奇之旅。他应用得天独厚的天文导航绘图以及航海专业知识并广泛搜集古地图、东西方断简残篇的证据．来支持自己的论点，成功地解释了近年所发现的中国船队沿路留下的遗物与碑文，以及中途的沉船，还有水手在各地祭拜妈祖的遗址。