FitNesse. UserGuide. RestfulServices.
PageHistoryXml [add child]

<PageHistory>
<Page>
<Name>
FitNesse.SuiteAcceptanceTests.SuiteResponderTests.SuiteMoveResponder.TestSimpleMove
</Name>
<TestResult>
<Date>Tue Jul 07 11:08:34 CDT 2009</Date>
<ResultLink>
FitNesse.SuiteAcceptanceTests.SuiteResponderTests.SuiteMoveResponder.TestSimpleMove?pageHistory&resultDate=20090707110834&format=xml
</ResultLink>
<Pass>6</Pass>
<Fail>0</Fail>
</TestResult>
...
</Page>
...
</PageHistory>