If you are a bit tech savvy, you could use one of these.
MakerFocus ESP8266 WiFi Module ESP8266 WiFi Deauth Detector V3 (Pre-flashed) with Buzzer RGB LED, ESP8266 ESP12N Inside 4MB Memory USB LED NodeMCU Wi-Fi Deauther ESP8266 Starter Kit DSTIKE https://www.amazon.com/dp/B07WKDPBRY/ref=cm_sw_r_cp_api_i_9HHX3FPMAP196M28YZ14
It's ignorant to be belive in things based off of faith.
https://www.antidote.info/en/blog/reports/bc-and-ad-bce-and-ce-whats-difference
Not sure what you are trying to accomplish by asking about B.D. I mean, I know to you that it is some sort of evidence, but really it just demonstrates an inability for critical thinking. What does that prove? It proves a monk who already believes in Christianity was like, Hey, let's start tracking things from this date because this date is important to us. I'll admit it's an efficient and organized way to keep track of time, but ultimately does nothing for your argument.
Edit: I noticed we have one thing in common, cacti!