diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 91812b9..224fe3a 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,6 +1,14 @@
-Contributing
-============
+#Contributing
 
 1. Fork the repo, develop and test your code changes, add docs, add "constructions".
 2. Make sure that your commit messages clearly describe the changes.
 3. Send a pull request.
+
+## Editing the Messages_<lg>.properties file
+Translations are based on editing the `Messages_<lg>.properties` file for two-digit language codes.  Each of the language codes are listed in [Java's Supported Locales](https://www.oracle.com/java/technologies/javase/jdk8-jre8-suported-locales.html).
+
+To add your language follow the instructions above to include your `Messages_<lg>.properties` file in the pull request (where `<lg>` is the code for your language.)
+
+Use either the `source/Messages.properties` file or the `source/Playground.txt` file as a template.
+
+More explicit instructions are in the [wiki](https://github.com/joshicola/geometry_playground_java/wiki/Instructions#languages).
\ No newline at end of file
diff --git a/README.md b/README.md
index 72fa6e5..91d6cf0 100644
--- a/README.md
+++ b/README.md
@@ -1,22 +1,14 @@
 # Geometry Playground
+Geometry Playground is a free ruler and compass Java application for multiple geometries.  
 
-Geometry Playground is a free ruler and compass Java application for multiple geometries. (You will need [Java 1.50](https://www.oracle.com/java/technologies/javase-downloads.html) or greater to run it.) To download Geometry Playground, follow the link below. Locate the `Playground.jar` in the download directory. Double-clicking the Playground.jar file will run Geometry Playground if the file is both set to "executable" and associated with a Java Runtime Executable. Alternatively, running the following command from a terminal prompt will do the same: `java -jar Playground.jar`.
+Follow the [instructions](https://github.com/joshicola/geometry_playground_java/wiki/Instructions#installation-and-launch) to download and launch Geometry Playground.
 
-<center><font size="+2"> 
+## Language Translations
+Geometry Playground has been translated into [10 Languages](https://github.com/joshicola/geometry_playground_java/wiki/Instructions#languages). To have it in your own language follow the [contributors guide](CONTRIBUTING.md) for changes to the `source/Messages.properties` file.
 
-[Geometry Playground](https://github.com/joshicola/geometry_playground_java/releases/latest/download/Playground.jar)<br>
-[幾何学プレイグランド](https://github.com/joshicola/geometry_playground_java/releases/latest/download/Playground.jar)<br>
-[Parque Geométrico](https://github.com/joshicola/geometry_playground_java/releases/latest/download/Playground.jar)<br>
-[भूमिती अंगण](https://github.com/joshicola/geometry_playground_java/releases/latest/download/Playground.jar)<br>
-[La Géométrie, une aire de jeux](https://github.com/joshicola/geometry_playground_java/releases/latest/download/Playground.jar)<br>
-[الهندسة، مساحة ألعاب](https://github.com/joshicola/geometry_playground_java/releases/latest/download/Playground.jar)<br>
-[기하 놀이마당](https://github.com/joshicola/geometry_playground_java/releases/latest/download/Playground.jar)<br>
-[Геометрическая Игравая Плошадка](https://github.com/joshicola/geometry_playground_java/releases/latest/download/Playground.jar)<br>
-[Geometria Játszótér](https://github.com/joshicola/geometry_playground_java/releases/latest/download/Playground.jar)<br>
-[几何园地](https://github.com/joshicola/geometry_playground_java/releases/latest/download/Playground.jar)
-</font></center>
 
-Instructions for Geometry Playground are probably not needed, but here is the general idea:
+## Basic Instructions for Use
+Barebones basic instructions for Geometry Playground are listed below:
 
 1.  Choose a geometry by selecting a tab.
 2.  Using the menus, choose what you want to do. You probably want to begin with the **Construct** menu.
@@ -24,12 +16,54 @@ Instructions for Geometry Playground are probably not needed, but here is the ge
 
 The command to "move stuff around" can be found in the **Manipulate** menu: **Transform** is the command.
 
+More in-depth instructions can be found in the accompanying [wiki pages](https://github.com/joshicola/geometry_playground_java/wiki/Instructions#instructions-for-use).
+
+## Sample Constructions
 There are some [**constructions**](Constructions) of some traditional Euclidean constructions and their counterparts in other geometries. These [**constructions**](Constructions) are integrated into this repository.
 
+## Contributing
 For contributing improvements to Geometry Playground or additional [**constructions**](Constructions), please submit a pull request.  
 
+## References
+Geometry Playground was featured in the Mathematical Association of America's Loci
+Heath, Daniel and Joshua Jacobs,“Geometry Playground”, Loci (September 2010), DOI: [10.4169/loci003567](http://dx.doi.org/10.4169/loci003567).
+
+## Credits
 The original Java version of Geometry Playground is written by [D. Heath](https://github.com/deejHeath) and [J. Jacobs](https://github.com/joshicola).
 
+Language translations have been performed by many individuals including:
+* Arabic:
+  * Feryal Alayont
+  * Rachid Benkahlti
+* Chinese:
+  * Yachuan Yu
+  * Xioquian Zhang
+  * Qiang Zheng
+* French:
+  * Guillaume Lajoie
+* Hungarian:
+  * Laszlo Miklos Lovasz
+* Italian:
+  * Jeffrey Weeks
+* Japanese:
+  * Daniel J. Heath
+  * Yumiko Heath
+  * Hideto Tsutsui
+* Korean:
+  * Hyun-Jong Song
+  * Matthew Kim
+* Marathi:
+  * Ajit Datar
+* Russian:
+  * Natalya Manko
+  * Daniil Perebeynos
+* Spanish:
+  * Erlinda Cano
+  * Laura Matrajt
+
+<br>
+<br>
+<br>
 <center><font size="-2">
-Last updated 2021/03/28.
+Last updated 2022/03/18.
 </font></center>
diff --git a/ToDo.md b/ToDo.md
new file mode 100644
index 0000000..3c09b3e
--- /dev/null
+++ b/ToDo.md
@@ -0,0 +1,3 @@
+# Get things done
+
+Done!
\ No newline at end of file
diff --git a/source/GeoPlayground.java b/source/GeoPlayground.java
index 15929fa..695b889 100755
--- a/source/GeoPlayground.java
+++ b/source/GeoPlayground.java
@@ -777,7 +777,7 @@ else if (n==9 || n==7 || n==5 || n==-5) // if type=CircIntCirc01, CircIntLine1,
 			  }
     }
     if (e.getSource()==aboutMI) {
-    	BareBonesBrowserLaunch.openURL("https://students.washington.edu/josher/mediawiki/");
+    	BareBonesBrowserLaunch.openURL("https://github.com/joshicola/geometry_playground_java/wiki/Instructions");
     }
     for (int i=0;i<7;i++) if (e.getSource()==digitMI[i]) {
     	digitMI[digits-1].setText("");
diff --git a/source/Messages.properties b/source/Messages.properties
index bf39531..ecb5f67 100644
--- a/source/Messages.properties
+++ b/source/Messages.properties
@@ -1,5 +1,5 @@
 //Translators:  More complete explanations of what the following lines of text are associated with,
-//              please look at http://students.washington.edu/josher/mediawiki/index.php?title=Instructions.
+//              please look at https://github.com/joshicola/geometry_playground_java/wiki/Instructions#languages.
 //              
 //              Only the text on the right needs to be translated.
 
diff --git a/source/Messages_hu.properties b/source/Messages_hu.properties
index 8995067..d3f6942 100644
--- a/source/Messages_hu.properties
+++ b/source/Messages_hu.properties
@@ -1,5 +1,5 @@
 //Translators:  More complete explanations of what the following lines of text are associated with,
-//              please look at http://students.washington.edu/josher/mediawiki/index.php?title=Instructions.
+//              please look at https://github.com/joshicola/geometry_playground_java/wiki/Instructions#languages.
 //              
 //              Only the text on the right needs to be translated.
 
diff --git a/source/Messages_it.properties b/source/Messages_it.properties
index 627e54b..955a870 100644
--- a/source/Messages_it.properties
+++ b/source/Messages_it.properties
@@ -1,5 +1,5 @@
 //Translators:  More complete explanations of what the following lines of text are associated with,
-//              please look at http://students.washington.edu/josher/mediawiki/index.php?title=Instructions.
+//              please look at https://github.com/joshicola/geometry_playground_java/wiki/Instructions#languages.
 //
 //              Only the text on the right needs to be translated.
 
diff --git a/source/Playground.txt b/source/Playground.txt
index 55e97d5..b76051e 100644
--- a/source/Playground.txt
+++ b/source/Playground.txt
@@ -1,5 +1,5 @@
 //Translators:  More complete explanations of what the following lines of text are associated with,
-//              please look at http://students.washington.edu/josher/mediawiki/index.php?title=Instructions.
+//              please look at https://github.com/joshicola/geometry_playground_java/wiki/Instructions#languages.
 //              
 //              Only the text on the right needs to be translated.