With this issue, ... [the] magazine turns 150—declining, with respect, the “battered,” still aspiring to the magical. What, beyond the patient commitment of its owners, can account for this longevity? Consider The Atlantic’s passage: through a permanent revolution in technology, from the telephone, to the practical fountain pen, to the radio, to the note pad, to the television, to the Internet; through financial crises, beginning in 1857 with what The Atlantic called a national “flurry” over credit (or liquidity, to use the present flurry’s term); through national arguments over slavery, suffrage, evolution, immigration, prohibition, anticommunism, civil rights, feminism, gay rights, evolution and immigration (again); through the international contests of ideology that defined the last century and into the new contest that so far is shaping this one. How has The Atlantic endured? More to the point, why?