The krone is the currency of Denmark, including the autonomous provinces of Greenland and the Faroe Islands. The plural form is 'kroner'. The government is still committed to converting Denmark's currency to the euro eventually.
The rand was introduced in 1961 and takes its name from the Witwatersrand, the ridge upon which Johannesburg is built and where most of South Africa's gold deposits were found. The Rand circulates freely in Namibia, Swaziland and Lesotho.