From f1505ea779289f983f596e57d9f15c284d7f157e Mon Sep 17 00:00:00 2001
From: Philipp Schneider <schneider.philipp@uni-muenster.de>
Date: Mon, 25 Jul 2022 17:36:08 +0200
Subject: [PATCH] Add basic properties for dating

---
 .../digital-heraldry-ontology-objects.ttl     | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/data/ontologies/digital-heraldry-ontology-objects.ttl b/data/ontologies/digital-heraldry-ontology-objects.ttl
index 45b9f4f..dcc47d0 100644
--- a/data/ontologies/digital-heraldry-ontology-objects.ttl
+++ b/data/ontologies/digital-heraldry-ontology-objects.ttl
@@ -49,6 +49,25 @@ dcterms:title rdf:type owl:AnnotationProperty .
 vann:preferredNamespacePrefix rdf:type owl:AnnotationProperty .
 
 
+#################################################################
+#    Object Properties
+#################################################################
+
+###  http://digitalheraldry.org/digital-heraldry-ontology/objects#hasDate
+dhoo:hasDate rdf:type owl:ObjectProperty ;
+             rdfs:domain dhoo:Object .
+
+
+###  http://digitalheraldry.org/digital-heraldry-ontology/objects#hasEarliestDate
+dhoo:hasEarliestDate rdf:type owl:ObjectProperty ;
+                     rdfs:subPropertyOf dhoo:hasDate .
+
+
+###  http://digitalheraldry.org/digital-heraldry-ontology/objects#hasLatestDate
+dhoo:hasLatestDate rdf:type owl:ObjectProperty ;
+                   rdfs:subPropertyOf dhoo:hasDate .
+
+
 #################################################################
 #    Classes
 #################################################################
-- 
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