In 1854, the Republican Party was founded mainly to end slavery, and for two decades it honorably promoted African-American equality. Its first presidential nominee, pioneer James C. FrÃ©mont, took a staunch anti-slavery stand in 1856 and ran well, paving the way for Abraham Lincoln's election four years later. Lincoln was no radical. He believed white men superior to blacks and opposed the outright abolition of slavery.
1 In a twin pregnancy. the average is 37 weeks. for triplets 34 and quadruplets 32 weeks.  The average birth weight for singletons is 7 lbs 7 oz. Average birth weight of twins is 5 lbs 5 oz. for triplets 4lbs and quads 3lbs. A difference in birth weight between multiples is not unusual.
Gestational Sac: Gestational age = 4 weeks plus (mean sac diameter in mm x days). This relies on the growth of the normal gestational sac of 1 mm per day after the 4th week of gestation. For example, a gestational sac measuring 11 mm would be approximately 5 weeks and 4 days gestational age. (4 weeks plus 11 days = 5 weeks and 4 days).