A search of Middle Eastern History shows this as significant for July 7: On July 7, 1937, the Peel Commission published its recommendations, which included the partition of western Palestine into a Jewish state and an Arab state.
http://brneurosci.org/israel-terrorism.html
Sorry if you've already seen this, but I'm a couple of hundred posts behind right now. Looks like RoyalsFan figured out why it was today, along with a narrowing of the suspects:
A search of Middle Eastern History shows this as significant for July 7: On July 7, 1937, the Peel Commission published its recommendations, which included the partition of western Palestine into a Jewish state and an Arab state.
http://brneurosci.org/israel-terrorism.html