Hallucinogens are a diverse group of drugs that cause an alteration in perception, thought, or mood. A rather heterogeneous group, these compounds have different chemical structures, different mechanisms of action, and different adverse effects.allucinogens are a diverse group of drugs that cause an alteration in perception, thought, or mood. A rather heterogeneous group, these compounds have different chemical structures, different mechanisms of action, and different adverse effects.
Which US President served the shortest term in office? William Henry Harrison, 9th President ,who died in office on April 4, 1841.served the shortest term of any president: March 4 - April 4, 1841. He served 30 days, 12 hours, andâ¦ 30 minutes. He died of pneumonia. William Henry Harrison only held office for 32 days.
On this day in 1773, future President William Henry Harrison is born on the Berkeley Plantation in Virginia. Harrison went on to serve as the ninth U.S. president for a brief 32 days in 1841, the shortest term ever served. Harrison is also credited with the record for the longest inaugural address in history. Delivered on a bitterly cold March morning, it clocked in at one hour and 45 minutes. He was also the last president to be born an English subject.