Freedom!

For 28 years it had stood as the symbol of the division of Europe and the world, of Communist suppression, of the xenophobia of a regime that had to lock its people in lest they be tempted by another, freer life -- the Berlin Wall, that hideous, 28-mile-long scar through the heart of a once proud European capital, not to mention the soul of a people. And then -- poof! -- it was gone. Not physically, at least yet, but gone as an effective barrier between East and West, opened in one unthinkable, stunning stroke to people it had kept apart for more than a generation. It was one of those rare times when the tectonic plates of history shift beneath men's feet, and nothing after is quite the same.

What happened in Berlin last week was a combination of the fall of the Bastille and a New Year's Eve blowout, of revolution and celebration. At the stroke of midnight on Nov. 9, a date that not only Germans would remember, thousands who had gathered on both sides of the Wall let out a roar and started going through it, as well as up and over. West Berliners pulled East Berliners to the top of the barrier along which in years past many an East German had been shot while trying to escape; at times the Wall almost disappeared beneath waves of humanity. They tooted trumpets and danced on the top. They brought out hammers and chisels and whacked away at the hated symbol of imprisonment, knocking loose chunks of concrete and waving them triumphantly before television cameras. They spilled out into the streets of West Berlin for a champagne-spraying, horn-honking bash that continued well past dawn, into the following day and then another dawn. As the daily BZ would headline: BERLIN IS BERLIN AGAIN.

Nor was the Wall the only thing to come tumbling down. Many who served the regime that had built the barrier dropped from power last week. Both East Germany's Cabinet and the Communist Party Politburo resigned en masse, to be replaced by bodies in which reformers mingled with hard-liners. And that, supposedly, was only the start. On the same day that East Germany threw open its borders, Egon Krenz, 52, President and party leader, promised "free, general, democratic and secret elections," though there was no official word as to when. Could the Socialist Unity Party, as the Communists call themselves in East Germany, lose in such balloting? "Theoretically," replied Gunter Schabowski, the East Berlin party boss and a Politburo member.

Thus East Germany probably can be added, along with Poland and Hungary, to the list of East European states that are trying to abandon orthodox Communism for some as-yet-nebulous form of social democracy. The next to be engulfed by the tides of change appears to be Bulgaria; Todor Zhivkov, 78, its longtime, hard-line boss, unexpectedly resigned at week's end. Outlining the urgent need for "restructuring," his successor, Petar Mladenov, said, "This implies complex and far from foreseeable processes. But there is no alternative." In all of what used to be called the Soviet bloc, Zhivkov's departure leaves in power only Nicolae Ceausescu in Rumania and Milos Jakes in Czechoslovakia, both old-style Communist dictators. Their fate? Who knows? Only a few weeks ago, East Germany seemed one of the most stolidly Stalinist of all Moscow's allies and the one least likely to undergo swift, dramatic change.