In section 6.10.2: "The pushState(data, title, url) method adds a state object to the history." perhaps should be "... adds a state object *entry* to the history."
"The replaceState(data, title, url) method updates the current entry in the history to have a state object." perhaps should be "The replaceState(data, title, url) method adds a stateObject to the current history entry or modifies (updates?) the entry's stateObject." "When either of these methods are invoked" should be "When either of these methods is invoked". -Justin