diff --git a/timeline/week19.txt b/timeline/week19.txt
index ff831237829ad9feb59667ee0e049837f6904004..f432d6fe57fb5f5a6630fa621a4b49957a823799 100644
--- a/timeline/week19.txt
+++ b/timeline/week19.txt
@@ -27,11 +27,15 @@ Week 19 (04.05.-10.05.)
 	[ ] Create ULO class in the vein of [2]
 
 
-[ ] familiarize w/ MathHub infastructure
+[~] familiarize w/ MathHub infastructure
 
-	[ ] look at tooling; user interface &c
+	[x] look at tooling; user interface &c
 
-	[ ] look at programming interfaces
+	[x] look at programming interfaces
+
+	    -> lmh is neat
+
+	    -> will probalby take advantage of this
 
 	[ ] evaluate databases for integration w/ MathHub
 
@@ -40,13 +44,15 @@ Week 19 (04.05.-10.05.)
 	[ ]  look at other graph databases; we need to at
 	     least look at alternatives, right?
 
-[ ] broken IRIs
+[~] broken IRIs
 
-	[ ] write down what's wrong exactly; it's not very helpful to
+	[x] write down what's wrong exactly; it's not very helpful to
 	    just report that "something is wrong, is it?
 
 	[ ] report to authors of exporters
 
+	-> review w/ Tom on Friday
+
 References
 ==========