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.
Production started in March of 1909 for The Titanic. She was built by Harland and Wolfe, a Irish ship building company based in Belfast, for the White Star Line.  In business terms, the Titanic was built by the White Star Line to  compete with the rival Cunard Line's newest ships, the Mauretania  and the Lusitania (the latter also met an untimely end in 1915).