1. On October 10, 1874, the first Japanese immigrants arrived in Hawaii. They were brought in by the Hawaii Sugar Planters' Association to work on their sugar plantations. This marked the beginning of significant Japanese immigration to the islands.

2. In 1899, on October 10, a powerful hurricane struck the island of Maui. It caused significant damage, including the destruction of several homes and crops. The hurricane, which was one of the strongest to hit Hawaii at the time, resulted in the loss of several lives.

3. On October 10, 1899, the first public library was established in Hawaii, in the city of Honolulu. This marked a significant milestone in the cultural and intellectual development of Hawaii.

4. In 1973, on October 10, the Polynesian Cultural Center was opened in Laie, on the island of Oahu. The center is dedicated to preserving and showcasing the diverse cultures of Polynesia, including Hawaii, Samoa, Tonga, Fiji, and Tahiti.

5. On October 10, 1979, Hawaii became the first state in the US to mandate a statewide recycling program. The law required counties to develop and implement recycling programs to reduce waste and preserve natural resources. The initiative was seen as a significant step towards environmental sustainability in Hawaii.