Yucatan

Yucatan, a peninsula in Central America dividing the Gulf of Mexico from the Caribbean Sea, and one of the few peninsulas of the world that extend northwards; is a flat expanse; has a good climate and a fertile soil, yielding maize, rice, tobacco, indigo, &c.; abounds in forests of valuable wood; forms one of the States of the Mexican Republic; it bears traces of early civilisation in the ruins of temples and other edifices.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Yttrium * Yuga
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Young, Thomas
Young Men's Christian Association
Young People's Society of Christian Endeavour
Youngstown
Ypres
Yriarte, Charles
Yriarte, Thomas de
Ystad
Ystradyfodwg
Yttrium
Yucatan
Yuga
Yukon
Yule
Yule, Sir Henry
Yumboes
Yung-ling
Yunnan
Yuste, St.
Yves
Yvetot