History is a muddy mess! If someone tells you ANY event in history happened due to one thing or issue, RUN! They are an idiot! Example 1:American Revolution. What caused it? Taxes, representation, military over reach, distance, King George? All good answers but there are hundreds more! Example 2: "Civil War" was all about slavery. Lincoln called for the invasion in 1861 yet he created West Virginia in 1863 as a NEW UNION SLAVE STATE. Many more examples are out there...