<human>:  Can atheism surpass Christianity in American black communities by 2021?
<bot>: No, atheism is not likely to surpass Christianity in American black communities by 2021. 83% of blacks in the US identify as Christians. In the United States, blacks are less likely than other ethnic groups to be religiously unaffiliated, let alone identifying as atheist. African American history, slavery and the civil rights movement are all closely tied to Christianity in America. So Christianity will prevail.