What is associated with: 1801 1835?

What is referred to by '180 minutes after noon'? What is associated with: 1800 seconds before 811 am? What is associated with: 1800 spain cedes this large territory to france? What is associated with: 180000 dwell in this city southwest of columbus northeast of cincinnati? What is associated with: 1802 whats that you say i said whatcha composin oh the kreutzer sonata? What is associated with: 1803 this chief justice declares any act of congress that goes against the constitution is ill… What is associated with: 1806 1861 uk how do i heart? What is associated with: 1808 napoleons brother joseph is made king of this neighbor of france?