Just an example: the Wikipedia entry on the Khilafat movement argues of its collapse in 1922 that “In wake of the ignominious statute of the Nehru Report, the Ali brothers began distancing themselves from Gandhi and the Congress.”
Yet, the entry on the Nehru Report (linked to in the very same Khilafat entry) correctly notes that the Report actually happened in 1928. Unless the Ali brothers had remarkable foresight, the original claim seems rather problematic.
Wikipedia is really useful in many ways. It is also wildly unreliable, something that too many students don’t fully seem to grasp. Don’t make that mistake.