The election of Abraham Lincoln in 1860 was the immediate cause of southern resolutions of secession. He was the nominee of the Republican party with an anti-slavery expansion platform, he refused to acknowledge the right to secession, and he would not yield federal property within Southern states.
The gestation period of a human, from time of conception to birth is approximately 9 months (266 days/38 Weeks). 9.5 months is calculated from the first day of the last menstrual period (280 days/40 Weeks).
So when we say a womanâs estimated gestational age is six weeksâ LMP, we mean she conceived about four weeks ago, around the time of ovulation. The expected duration of a pregnancy is 40 weeks from the first day of LMP (four weeks more than the traditional nine months by which many count). Medical professionals consider delivery premature when it occurs before 36 weeks, and extremely premature when it occurs before 28 weeksâ LMP.