In the late Ottoman rule, a large percentage of Syrian Christians emigrated from Syria, especially after the bloody chain of events that targeted Christians in particular in 1840, the 1860 massacre, and the Assyrian genocide. According to historian Philip Hitti, approximately 900,000 Syrians arrived in the United States between 1899 and 1919 (more than 90% of them Christians). The Syrians referred include historical Syria or the Levant encompassing Syria, Lebanon, Jordan and Palestine. Syrian Christians tend to be relatively wealthy and highly educated.