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).
NOTES. The normal gestation period for a full size horse is 335 to 360 days (342 average.). The average gestation period for a miniature horse is approximately 320 days, but they should be closely watched after 300 days, or sooner depending upon any physical changes you see.The normal gestation period for donkeys is 360 to 375 days (368 average.).For goats, the average is 150 days. The average gestation period for cows is 283 days.For sheep, it's 145 days.he normal gestation period for donkeys is 360 to 375 days (368 average.). For goats, the average is 150 days. The average gestation period for cows is 283 days. For sheep, it's 145 days.