that no human being would ever have been bought or sold on this planet. Am I right?"
"Are you saying that slavery was not an unmitigated evil?" asked Tagiri.
"Yes, that's what I'm saying," said Kemal. "Because you're looking at slavery from the wrong end -- from the present, when we've abolished it. But back at the beginning, when it started, doesn't it occur to you that it was infinitely better than what it replaced?"
Tagiri's veneer of polite interest was clearly wearing thin. "I've read your remarks about the origin of slavery."
"But you're not impressed."
"It's natural, when you make a great discovery, to assume that it has wider implications than it actually has," said Tagiri. "But there is no reason to think that human bondage originated exclusively with Atlantis, as a replacement for human sacrifice."
"But I never said that," said Kemal. "My opponents said that I said that, but I thought you would have read more carefully."
Hassan spoke up, trying to sound mild and forceful, both at once. "I think that this seems to be getting too personal. Did you come all this way, Kemal, to tell us that we're stupid? You could have done that by mail."
"No," said Kemal, "I came for Tagiri to tell me that I have a pathological need to think that Atlantis is the cause of everything." Kemal rose out of his chair, turned around, picked it up, and hurled it away. "Give me a mat! Let me sit down with you and tell you what I know! If you want to reject it afterward, go ahead. But don't waste my time or yours by defending yourselves or attacking me!"
Hassan stood up. For a moment Kemal wondered if he was going to strike him. But then Hassan bent down, picked up his mat from the grass, and held it out to Kemal. "So," said Hassan. "Talk."
Kemal laid out the mat and sat down. Hassan shared his daughter's mat, in the second row.
"Slavery," said Kemal. "There are many ways that people have been held in bondage. Serfs were bound to the land. Nomad tribes adopted occasional captives or strangers, and made them second-class members of the tribe, without the freedom to leave. Chivalry originated as a sort of dignified mafia, sometimes even a protection racket, and once you accepted an overlord you were his to command. In some cultures, deposed kings were kept in captivity, where they had children born in captivity, and grandchildren, and great-grandchildren who were never harmed, but never allowed to leave. Whole populations have been conquered and forced to work under foreign overlords, paying unpayable tribute to their masters. Raiders and pirates have carried off hostages for ransom. Starving people have bound themselves into service. Prisoners have been forced into involuntary labor. These kinds of bondage have shown up in many human cultures. But none of these is slavery."
"By a narrow definition, that's right," said Tagiri.
"Slavery is when a human being is made property. When one person is able to buy and sell, not just someone's labor, but his actual body, and any children he has. Movable property, generation after generation." Kemal looked at them, at the coldness still visible in their faces. "I know that you all know this. But what you seem not to realize is that slavery was not inevitable. It was invented, at a specific time and place. We know when and where the first person was turned into property. It happened in Atlantis, when a woman had the idea of putting the sacrificial captives to work, and then, when her most valued captive was going to be sacrificed, she paid her tribal elder to remove him permanently from the pool of victims."
"That's not exactly the slave block," said Tagiri.
"It was the beginning. The practice spread quickly, until it became the main reason for raiding other tribes. The Derku people began buying the captives directly from the raiders. And then they started trading slaves among themselves and finally buying and selling them."
"What an achievement," said Tagiri.
"It became the foundation of their city, the fact that the slaves were doing the citizens' duty in digging the canals and planting and tending the crops. Slavery was the reason they could afford the leisure time to develop a recognizable civilization. Slavery was so profitable to them that the Derku holy men wasted no time in finding that the dragon-god no longer wanted human sacrifices, at least for a while. That meant that all their captives could be made into slaves and put to