diff --git a/modifications/edit/forms/personHasPositionHistory.jsp b/modifications/edit/forms/personHasPositionHistory.jsp
index 85562a48..7726b778 100644
--- a/modifications/edit/forms/personHasPositionHistory.jsp
+++ b/modifications/edit/forms/personHasPositionHistory.jsp
@@ -61,22 +61,6 @@
       ?positionUri <http://vivoweb.org/ontology/core#startYear> ?startYear .
 </v:jsonset>
 
-<v:jsonset var="startYearMonthExisting" >      
-      SELECT ?startYearMonthExisting WHERE {  
-      	?positionUri <http://vivoweb.org/ontology/core#startYearMonth> ?startYearMonthExisting }
-</v:jsonset>
-<v:jsonset var="startYearMonthAssertion" >
-      ?positionUri <http://vivoweb.org/ontology/core#startYearMonth> ?startYearMonth .
-</v:jsonset>
-
-<v:jsonset var="startDateExisting" >      
-      SELECT ?startDateExisting WHERE {  
-      	?positionUri <http://vivoweb.org/ontology/core#startDate> ?startDateExisting }
-</v:jsonset>
-<v:jsonset var="startDateAssertion" >
-      ?positionUri <http://vivoweb.org/ontology/core#startDate> ?startDate .
-</v:jsonset>
-
 <v:jsonset var="endYearExisting" >      
       SELECT ?endYearExisting WHERE {  
       	?positionUri <http://vivoweb.org/ontology/core#endYear> ?endYearExisting }
@@ -85,22 +69,6 @@
       ?positionUri <http://vivoweb.org/ontology/core#endYear> ?endYear .
 </v:jsonset>
 
-<v:jsonset var="endYearMonthExisting" >      
-      SELECT ?endYearMonthExisting WHERE {  
-      	?positionUri <http://vivoweb.org/ontology/core#endYearMonth> ?endYearMonthExisting }
-</v:jsonset>
-<v:jsonset var="endYearMonthAssertion" >
-      ?positionUri <http://vivoweb.org/ontology/core#endYearMonth> ?endYearMonth .
-</v:jsonset>
-
-<v:jsonset var="endDateExisting" >      
-      SELECT ?endDateExisting WHERE {  
-      	?positionUri <http://vivoweb.org/ontology/core#endDate> ?endDateExisting }
-</v:jsonset>
-<v:jsonset var="endDateAssertion" >
-      ?positionUri <http://vivoweb.org/ontology/core#endDate> ?endDate .
-</v:jsonset>
-
 <%--  Note there is really no difference in how things are set up for an object property except
       below in the n3ForEdit section, in whether the ..Existing variable goes in SparqlForExistingLiterals
       or in the SparqlForExistingUris, as well as perhaps in how the options are prepared --%>
@@ -139,15 +107,13 @@
     
     "n3required"    : [ "${n3ForStmtToPerson}", "${titleAssertion}" ],
     "n3optional"    : [ "${organizationNameAssertion}","${organizationUriAssertion}",
-                        "${startYearAssertion}","${startYearMonthAssertion}","${startDateAssertion}",
-                        "${endYearAssertion}","${endYearMonthAssertion}","${endDateAssertion}"],
+                        "${startYearAssertion}","${endYearAssertion}"],
     "newResources"  : { "positionUri" : "${defaultNamespace}/position" },
     "urisInScope"    : { },
     "literalsInScope": { },
     "urisOnForm"     : [ "organizationUri" ],
     "literalsOnForm" :  [ "title", "organizationName", 
-    					  "startYear", "startYearMonth", "startDate",
-                          "endYear",   "endYearMonth",   "endDate" ],
+    					  "startYear", "endYear" ],
     "filesOnForm"    : [ ],
     "sparqlForLiterals" : { },
     "sparqlForUris" : {  },
@@ -155,11 +121,7 @@
         "title"              : "${titleExisting}",
         "organizationName"   : "${organizationNameExisting}",
         "startYear"          : "${startYearExisting}",
-        "startYearMonth"     : "${startYearMonthExisting}",
-        "startDate"          : "${startDateExisting}",
-        "endYear"            : "${endYearExisting}",
-        "endYearMonth"       : "${endYearMonthExisting}",
-        "endDate"            : "${endDateExisting}"
+        "endYear"            : "${endYearExisting}"
     },
     "sparqlForExistingUris" : {
         "organizationUri"   : "${organizationUriExisting}"
@@ -200,7 +162,7 @@
       },
       "startYear" : {
          "newResource"      : "false",
-         "validators"       : [ ],
+         "validators"       : [ "datatype:http://www.w3.org/2001/XMLSchema#gYear" ],
          "optionsType"      : "UNDEFINED",
          "literalOptions"   : [ ],
          "predicateUri"     : "",
@@ -209,31 +171,9 @@
          "rangeLang"        : "",         
          "assertions"       : ["${startYearAssertion}"]
       },
-      "startYearMonth" : {
-         "newResource"      : "false",
-         "validators"       : [],
-         "optionsType"      : "UNDEFINED",
-         "literalOptions"   : [ ],
-         "predicateUri"     : "",
-         "objectClassUri"   : "",
-         "rangeDatatypeUri" : "http://www.w3.org/2001/XMLSchema#gYearMonth";
-         "rangeLang"        : "",         
-         "assertions"       : [ "${startYearMonthAssertion}" ]
-      },
-      "startDate" : {
-         "newResource"      : "false",
-         "validators"       : [],
-         "optionsType"      : "UNDEFINED",
-         "literalOptions"   : [],
-         "predicateUri"     : "",
-         "objectClassUri"   : "",
-         "rangeDatatypeUri" : "http://www.w3.org/2001/XMLSchema#Date",
-         "rangeLang"        : "",         
-         "assertions"       : [ "${startDateAssertion}" ]
-      },
       "endYear" : {
          "newResource"      : "false",
-         "validators"       : [ ],
+         "validators"       : [ "datatype:http://www.w3.org/2001/XMLSchema#gYear" ],
          "optionsType"      : "UNDEFINED",
          "literalOptions"   : [ ],
          "predicateUri"     : "",
@@ -241,29 +181,7 @@
          "rangeDatatypeUri" : "http://www.w3.org/2001/XMLSchema#gYear",
          "rangeLang"        : "",         
          "assertions"       : ["${endYearAssertion}"]
-      },
-      "endYearMonth" : {
-         "newResource"      : "false",
-         "validators"       : [],
-         "optionsType"      : "UNDEFINED",
-         "literalOptions"   : [ ],
-         "predicateUri"     : "",
-         "objectClassUri"   : "",
-         "rangeDatatypeUri" : "http://www.w3.org/2001/XMLSchema#gYearMonth";
-         "rangeLang"        : "",         
-         "assertions"       : [ "${endYearMonthAssertion}" ]
-      },
-      "endDate" : {
-         "newResource"      : "false",
-         "validators"       : [],
-         "optionsType"      : "UNDEFINED",
-         "literalOptions"   : [],
-         "predicateUri"     : "",
-         "objectClassUri"   : "",
-         "rangeDatatypeUri" : "http://www.w3.org/2001/XMLSchema#Date",
-         "rangeLang"        : "",         
-         "assertions"       : [ "${endDateAssertion}" ]
-    }
+      }
   }
 }
 </c:set>
@@ -304,20 +222,8 @@
 	<v:input type="text" label="title" id="title" size="30" />
 	<v:input type="select" label="organization" id="organizationUri"  />
 	<v:input type="text" label="organization name (if not in dropdown above)" id="organizationName" size="30" />
-
-    <v:input type="text" label="start year (YYYY)" id="startYear" size="4"/>
-    
-    <%--
-    <v:input type="text" label="startYearMonth" id="startYearMonth" size="7"/>
-    <v:input type="text" label="start date" id="startDate" size="10"/>
-    --%>
-    
+    <v:input type="text" label="start year (YYYY)" id="startYear" size="4"/>    
     <v:input type="text" label="end year (YYYY)" id="endYear" size="4"/>
-    
-    <%--
-    <v:input type="text" label="end year-month" id="endYearMonth" size="7"/>
-    <v:input type="text" label="end date" id="endDate" size="10"/>
-    --%>
     <p class="submit"><v:input type="submit" id="submit" value="<%=submitLabel%>" cancel="${param.subjectUri}"/></p>
 </form>