这个过程在1956年本来可以自然开始的，那时在位于密克罗尼西亚的吉尔伯特群岛上英国管理部门对出口用作肥料的磷酸盐-鸟的粪肥-强制增税。

That process may have started inadvertently in 1956 when the British administration of the Gilbert Islands in Micronesia put a levy on the export of phosphates-bird manure-used in fertiliser.

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