<P> In 1902 Henderson was annexed to the Pitcairn Islands colony , now a South Pacific British Overseas Territory . It was designated a World Heritage Site by the United Nations in 1988 . </P>
<P> In 1902 Henderson was annexed to the Pitcairn Islands colony , now a South Pacific British Overseas Territory . It was designated a World Heritage Site by the United Nations in 1988 . </P>
when did the united nations designate henderson island a world heritage site
when did the united nations designate henderson island a world heritage site
1988
1988