$ContactHistoryID :
ID of history of selected Contact.
$EventType :
Type of event occured on this Contact.
$EventTypeValue :
Numeric code of event occured on this Contact.
$EventDate :
Formatted date of event.
$ChannelName :
Name of selected channel.
$TemplateName :
Name of template.
$IPAddress :
IP Address of the event.
$Country :
Country of the event.
$Data :
Information about the event