哥伦比亚大学开始对示威学生进行停学处理后，一批学生占领哈密尔顿大楼，校方声称将开除占领大楼的学生。在历史上哈密尔顿大楼多次被示威学生占领。1968年反战学生占领该楼一周，校方叫来警察清场，抓捕700多名学生、打伤100多名学生，但学校答应了示威学生的所有诉求，包括停止与军方合作、取消在哈莱姆的公园建体育馆、赦免所有示威学生、校长和教务长辞职。1985年学生占领该大楼三周，校方答应学生诉求，剥离对南非的投资。这些都成为学校光荣历史的一部分。

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Date: 2024-06-24| 方舟子

The S&P 500 slumped 1.8% on Monday and Tuesday, thanks to China Evergrande, the Chinese property company that looks like it is ready to default on its more-than $300 billion in debt. Cries of the next Lehman Brothers—or maybe the next Silverado?—echoed through the canyons of Wall Street as investors prepared for the worst.

Telegram Auto-Delete Messages in Any Chat

Some messages aren’t supposed to last forever. There are some Telegram groups and conversations where it’s best if messages are automatically deleted in a day or a week. Here’s how to auto-delete messages in any Telegram chat. You can enable the auto-delete feature on a per-chat basis. It works for both one-on-one conversations and group chats. Previously, you needed to use the Secret Chat feature to automatically delete messages after a set time. At the time of writing, you can choose to automatically delete messages after a day or a week. Telegram starts the timer once they are sent, not after they are read. This won’t affect the messages that were sent before enabling the feature.