diff --git a/README.md b/README.md
index b35e63ada34fbcba4dba0bf441ee58bbbeab1fd1..4684344406ace48a0e830f06dfeff7cf95545bc0 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Python module for binary_c
 
-Based on a original work by Jeff Andrews, updated and extended
-for Python3 by Robert Izzard
+Based on a original work by Jeff Andrews (can be found in old_solution/ directory)
+updated and extended for Python3 by Robert Izzard, David hendriks
 
 **THIS CODE IS VERY EXPERIMENTAL AND PROBABLY WILL NOT WORK**
 
@@ -66,4 +66,4 @@ If we're going to do populations:
 - Use queueing system/asynchronous task queue
 - Make some parse-data that can be easily used
 - Make some simple script to assign probabilities
-- rebuild all perl stuff into a python grid code.
\ No newline at end of file
+- rebuild all perl stuff into a python grid code.
diff --git a/build/temp.linux-x86_64-3.6/binary_c_python.o b/build/temp.linux-x86_64-3.6/binary_c_python.o
index 7f9c6db721791a3a435987a618f423c5bfbb65b6..06cd0dddcddbe24fbba2cc788caf5ba4888b4eff 100644
Binary files a/build/temp.linux-x86_64-3.6/binary_c_python.o and b/build/temp.linux-x86_64-3.6/binary_c_python.o differ
diff --git a/binary_c_api.c b/old_solution/binary_c_api.c
similarity index 100%
rename from binary_c_api.c
rename to old_solution/binary_c_api.c
diff --git a/binary_c_api.h b/old_solution/binary_c_api.h
similarity index 100%
rename from binary_c_api.h
rename to old_solution/binary_c_api.h
diff --git a/binary_c_api_python.h b/old_solution/binary_c_api_python.h
similarity index 100%
rename from binary_c_api_python.h
rename to old_solution/binary_c_api_python.h
diff --git a/compile_script.txt b/old_solution/compile_script.txt
similarity index 100%
rename from compile_script.txt
rename to old_solution/compile_script.txt
diff --git a/test_new_api_command.py b/tests_david/test
similarity index 100%
rename from test_new_api_command.py
rename to tests_david/test