These were: the  Orange Free State, centered around the Orange River, and the Transvaal Republic, beyond the  River Vaal.

它们是：以奥兰治河为中心的奥兰治自由邦，以及瓦尔河以外的德兰士瓦共和国。

The first diamonds had been discovered in South  Africa three years previously, when in 1867, a 22-carat stone was discovered on the De Kalk  farm on the Orange River.

三年前，第一批钻石在南非被发现，即 1867 年， 在奥兰治河 (Orange River) 的德卡尔克 (De Kalk) 农场发现了一颗 22 克拉的钻石。