Now That You Understand What "Terrorism" Means...
Terrorism is not a new concept, it came into existence as soon as people gained the ability to control one another. Marrying the oppressed with unbridled fanaticism will give birth to offspring that is impossible to completely destroy. Freedom, Justice, Honor, Truth, Liberation, God; whatever the cause is, the imminent conflict may bring death to people but never the idea. And the idea is how a reform, reaction, or revolution begins.
The 1st Century Zealots and Sicarii might not have been the first terrorist organization, but their footprints paved the way for future generations of terrorists to follow. The environment that fostered their revolution was realized once their lands were taken from them.
The Roman Empire continued to take and take from the Jewish people; desecrating their traditions, openly mocking them, and leaving them with no identity. The government of Judea did nothing to liberate its own citizens, so they turned to extreme methods in order to regain their basic needs and the Zealots were formed. From the Zealots came even more radical terrorists --the Sicarii-- which eventually clashed with their own brothers.
We will see in the future how these exact conditions will give rise to a new form a terrorism.