Today is the 17 of Tammuz, also known as Tzom Tammuz ("the fast of Tammuz"), one of Judaism's lesser fast days, which inaugurates the "Three Weeks" of mourning which will culminate in Tisha b'Av.
A few years ago I wrote a post called Reflections on 17 Tammuz. Here's a taste:
According to the Mishna, this was the day the Romans breached the walls around Jerusalem, which led to the destruction three weeks later of the Second Temple in 70 C.E. Tradition also holds that today is the anniversary of Moses breaking the tablets of the Ten Commandments when he came down the mountain to find the Israelites worshiping that golden calf...
For those who don't observe the Three Weeks in the traditional ways, and don't yearn for the restoration of sacrifice atop the Temple mount, can 17 Tammuz still hold meaning?
To see how I answered, read the whole essay -- and feel free to comment in response, either on that original post or on this one.