Migraine most frequently causes simple visual hallucinations, but complex visual hallucinations may occur in basilar migraine and familial hemiplegic migraine. In contrast to hallucinations in migraine aura, complex visual hallucinations in basilar migraine appear at a late stage of an attack usually following symptoms of brainstem and cerebellar dysfunction or at recovery from coma.
The building of the Titanic took 2 years, 2 months. Construction  began on 31 March 1909. It was launched on 31 May 1911.   it took three years to completely construct anâ¦d outfit the titanic  but the building of the titanic was on march 31,1909 It took 2 years. From 1909 to 1911.
Read on and enjoy our Titanic facts for kids. 1  The Titanic was built between 1909 and 1911. 2  It was 882 feet (269 metres) in length and 175 feet (53 metres) in height. 3  The Titanic had a crew of around 900 people.  The Titanicâs engines were powered by pressurized steam from burning coal.