UPDATE, September 3, 2014, 5:20 p.m. E.T:
A Facebook spokesperson gave Mashable the following statement:
Earlier today we encountered an error while making an infrastructure configuration change that briefly made it difficult for people to access Facebook. We immediately discovered the issue and fixed it, and everyone should now be able to connect. We apologize for the inconvenience and will thoroughly investigate this issue so we can learn from it and ensure that Facebook is there when people need it.
—-Facebook, Social Media, and Apps Software