As an AI language model, I cannot determine Nebraska-specific events on a given date without external sources. However, here are some interesting facts about August 1 in general:

1. August 1st is celebrated annually as Swiss National Day. It marks the date in 1291 when Switzerland became a federal state.

2. On August 1, 1834, slavery was abolished in the British Empire, including in Canada, which was still a British colony at the time.

3. The first postage stamp, the Penny Black, went on sale on August 1, 1840 in Great Britain.

4. The last quagga, a subspecies of zebra, died in the Amsterdam Zoo on August 1, 1883. The quagga was formerly found in southern Africa.

5. On August 1, 1966, Charles Whitman opened fire from the clock tower of the University of Texas, killing 16 people and injuring 31 others. It is considered one of the deadliest mass shootings in U.S. history.