diff --git a/_pages/archive/history-archive.html b/_pages/archive/history-archive.html
index b039bcbd..2c171e40 100644
--- a/_pages/archive/history-archive.html
+++ b/_pages/archive/history-archive.html
@@ -5,7 +5,7 @@ permalink: /history/archive/
 author_profile: false
 header:
   image: /images/did-header1.png
-  teaser: #/images/SourceCrypto-DiscoLog-teaser.png
+  og_image: /images/evolution.png
   caption: "[DID History - Curators Collaborative](https://discord.gg/YdGEh2t)"
 sidebar:
   title: DID History
@@ -14,6 +14,7 @@ classes: wide
 share: true
 ---
 
+<iframe src="//www.slideshare.net/slideshow/embed_code/key/ujYqOXNEaaogEq" width="595" height="485" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" style="border:1px solid #CCC; border-width:1px; margin-bottom:5px; max-width: 100%;" allowfullscreen> </iframe> <div style="margin-bottom:5px"> <strong> <a href="//www.slideshare.net/prabathsiriwardena/the-evolution-of-internet-identity" title="The Evolution of Internet Identity" target="_blank">The Evolution of Internet Identity</a> </strong> from <strong><a href="https://www.slideshare.net/prabathsiriwardena" target="_blank">Prabath Siriwardena</a></strong> </div>
 
 {% capture written_label %}'None'{% endcapture %}
 
diff --git a/_posts/2019-03-04-history.md b/_posts/2019-03-04-history.md
index 1acf79df..378bf57a 100644
--- a/_posts/2019-03-04-history.md
+++ b/_posts/2019-03-04-history.md
@@ -20,6 +20,9 @@ published: true
 
 ⇉⇉ [Collab-Curation Historical Archive](/history/archive/) ⇇⇇
 
+<iframe src="//www.slideshare.net/slideshow/embed_code/key/ujYqOXNEaaogEq" width="595" height="485" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" style="border:1px solid #CCC; border-width:1px; margin-bottom:5px; max-width: 100%;" allowfullscreen> </iframe> <div style="margin-bottom:5px"> <strong> <a href="//www.slideshare.net/prabathsiriwardena/the-evolution-of-internet-identity" title="The Evolution of Internet Identity" target="_blank">The Evolution of Internet Identity</a> </strong> from <strong><a href="https://www.slideshare.net/prabathsiriwardena" target="_blank">Prabath Siriwardena</a></strong> </div>
+
+
 ## Losing Control Over our Personal Information
 
 ![](/images/chaum-security-without-identification-big-brother.png)
diff --git a/images/evolution.png b/images/evolution.png
new file mode 100644
index 00000000..864cb87c
Binary files /dev/null and b/images/evolution.png differ